feat(tournament): add Swiss-system tournament module

Implements the full tournament lifecycle: create, join, withdraw, start,
round progression, and finish with Buchholz tiebreak standings.

- REST resource covering all 11 endpoints from the OpenAPI spec
- Swiss pairing algorithm with bye support
- Per-bot NDJSON stream with targeted gameStart events (color field)
- Game result ingestion via Redis writeback stream
- H2-backed integration tests for resource and pairing service

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

bruno/account/challenge/01 Send Challenge.bru

@@ -10,11 +10,6 @@ post {
   auth: inherit
 }
 
-settings {
-  encodeUrl: true
-  timeout: 0
-}
-
 headers {
   Content-Type: application/json
   Authorization: Bearer {{token}}
@@ -22,9 +17,20 @@ headers {
 
 body:json {
   {
+    "color": "random",
     "timeControl": {
       "limitSeconds": 600,
       "incrementSeconds": 5
     }
   }
 }
+
+vars:pre-request {
+  username: bdc
+  token: eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJpc3MiOiJub3djaGVzcyIsInN1YiI6ImY3MGQxNDIwLTdhZmEtNGVjMy05Mzg1LWViYWU0N2U3NGY4OCIsInVzZXJuYW1lIjoicGxheWVyMSIsImlhdCI6MTc3OTE5MjkwOCwiZXhwIjoxNzc5MTkzMjA4LCJqdGkiOiJkMDhlZmRhMi01ZjliLTQyNjgtOGM3MC1iNDA2OTViNDhiMTUifQ.q68R2bUdRQ5QwEIfcP0d2g_Wac94qd4K6BzP-PC94x-tDpT3leUY8ZpqY6YzoNv-ywp5sm47-WC539DyUqdzDgPVLLSmOMjRxG-HpaNdXwsXlp8_C7KGlgkK_XSMa3Gq6S4AfUbaXbRhPg5NZz2MRosu0BY2ed0ISvmEfX5XEdBRlKgD14BIKAsEFv3tHtarFS1RGpcSoHV2oeIk_m-VHUC78N-ciNHmBH6mZna_fVHgMocOIrEsTZuUms0Zacmebvh2tAcf36xux1Bm2awJff19zReD-A2o9jucrKcM3Im5BJ6JtuWAsHEae9KLmuol6S2pldvNOmUn3egFUYz0yQ
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

docs/tournament-openapi.yaml

@@ -0,0 +1,623 @@
+openapi: 3.0.3
+info:
+  title: NowChess Tournament API
+  description: |
+    Swiss-system bot tournaments, modelled after the Lichess API style.
+
+    Game moves flow through the existing board and bot endpoints — this module
+    handles pairings, standings, and lifecycle only.
+
+    ## Streaming
+    Endpoints marked **NDJSON** return newline-delimited JSON objects
+    (`application/x-ndjson`). Each line is one complete JSON object. The
+    connection stays open until the tournament or round ends.
+
+    ## Bot flow
+    ```
+    POST /api/tournament                       # create
+    POST /api/tournament/{id}/join             # each bot joins
+    POST /api/tournament/{id}/start            # director starts
+
+    GET  /api/tournament/{id}/stream  (NDJSON) # open before start
+
+    -- per round --
+    receive gameStart { gameId, color }
+    GET  /bot/stream/game/{gameId}    (existing, NDJSON)
+    POST /bot/game/{gameId}/move/{uci}         (existing)
+    -- repeat --
+
+    GET  /api/tournament/{id}/results (NDJSON) # final standings
+    ```
+  version: 1.0.0
+
+servers:
+  - url: https://st.nowchess.janis-eccarius.de
+    description: Staging
+  - url: https://nowchess.janis-eccarius.de
+    description: Production
+  - url: http://localhost:8086
+    description: Local
+
+security:
+  - bearerAuth: []
+
+tags:
+  - name: Tournament
+    description: Tournament lifecycle
+  - name: Participation
+    description: Join and withdraw
+  - name: Results
+    description: Standings, pairings, and game export
+  - name: Stream
+    description: NDJSON event streams
+
+paths:
+
+  /api/tournament:
+    get:
+      tags: [Tournament]
+      summary: Get current tournaments
+      description: Returns tournaments grouped by status. No auth required.
+      security: []
+      responses:
+        "200":
+          description: Tournaments by status
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  created:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+                  started:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+                  finished:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/TournamentInfo"
+
+    post:
+      tags: [Tournament]
+      summary: Create a new tournament
+      description: The authenticated user becomes the tournament director.
+      requestBody:
+        required: true
+        content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: "#/components/schemas/CreateTournamentForm"
+      responses:
+        "201":
+          description: Tournament created
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "400":
+          $ref: "#/components/responses/BadRequest"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+
+  /api/tournament/{id}:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Tournament]
+      summary: Get a tournament
+      description: Includes the first page of standings in the `standing` field.
+      security: []
+      responses:
+        "200":
+          description: Tournament with embedded standings
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+    delete:
+      tags: [Tournament]
+      summary: Terminate a tournament
+      description: Only the director may terminate. Only allowed while status is `created`.
+      responses:
+        "204":
+          description: Terminated
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/start:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Tournament]
+      summary: Start the tournament
+      description: |
+        Only the director may start. Requires at least 2 joined bots.
+        Computes round 1 pairings and creates games via `POST /api/board/game`.
+      responses:
+        "200":
+          description: Tournament started
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Tournament"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/join:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Participation]
+      summary: Join a tournament
+      description: |
+        Register the authenticated bot for the tournament. Only allowed while
+        status is `created`. The token subject must be a bot account.
+      responses:
+        "200":
+          description: Ok
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Ok"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/withdraw:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    post:
+      tags: [Participation]
+      summary: Withdraw from a tournament
+      description: Only allowed while status is `created`.
+      responses:
+        "200":
+          description: Ok
+          content:
+            application/json:
+              schema:
+                $ref: "#/components/schemas/Ok"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "403":
+          $ref: "#/components/responses/Forbidden"
+        "404":
+          $ref: "#/components/responses/NotFound"
+        "409":
+          $ref: "#/components/responses/Conflict"
+
+  /api/tournament/{id}/results:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Results]
+      summary: Get results as NDJSON stream
+      description: |
+        Streams one `Result` object per line, sorted by rank ascending.
+        Available at any point during or after the tournament.
+      security: []
+      parameters:
+        - name: nb
+          in: query
+          description: Max number of results to stream (default all)
+          schema:
+            type: integer
+            minimum: 1
+      responses:
+        "200":
+          description: NDJSON stream of results
+          content:
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/Result"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/round/{round}:
+    parameters:
+      - $ref: "#/components/parameters/id"
+      - name: round
+        in: path
+        required: true
+        schema:
+          type: integer
+          minimum: 1
+
+    get:
+      tags: [Results]
+      summary: Get pairings for a round
+      security: []
+      responses:
+        "200":
+          description: Pairings for the specified round
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  round:
+                    type: integer
+                    example: 2
+                  pairings:
+                    type: array
+                    items:
+                      $ref: "#/components/schemas/Pairing"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/export/games:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Results]
+      summary: Export all games
+      description: |
+        Returns all games of the tournament. Accepts both PGN and NDJSON via
+        the `Accept` header.
+      security: []
+      parameters:
+        - name: Accept
+          in: header
+          schema:
+            type: string
+            enum:
+              - application/x-chess-pgn
+              - application/x-ndjson
+            default: application/x-chess-pgn
+      responses:
+        "200":
+          description: Games in the requested format
+          content:
+            application/x-chess-pgn:
+              schema:
+                type: string
+                description: Standard PGN, one game per block
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/GameExport"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+  /api/tournament/{id}/stream:
+    parameters:
+      - $ref: "#/components/parameters/id"
+
+    get:
+      tags: [Stream]
+      summary: Stream tournament events
+      description: |
+        NDJSON stream scoped to one tournament. Keep this connection open for
+        the full tournament lifetime.
+
+        On `gameStart` the bot connects to the existing bot endpoints:
+        - `GET /bot/stream/game/{gameId}` — stream game state (existing)
+        - `POST /bot/game/{gameId}/move/{uci}` — submit moves (existing)
+      responses:
+        "200":
+          description: NDJSON event stream
+          content:
+            application/x-ndjson:
+              schema:
+                $ref: "#/components/schemas/TournamentEvent"
+        "401":
+          $ref: "#/components/responses/Unauthorized"
+        "404":
+          $ref: "#/components/responses/NotFound"
+
+components:
+
+  securitySchemes:
+    bearerAuth:
+      type: http
+      scheme: bearer
+      bearerFormat: JWT
+
+  parameters:
+    id:
+      name: id
+      in: path
+      required: true
+      schema:
+        type: string
+      example: t7kXq2
+
+  schemas:
+
+    Clock:
+      type: object
+      required: [limit, increment]
+      properties:
+        limit:
+          type: integer
+          description: Base time in seconds
+          example: 300
+        increment:
+          type: integer
+          description: Increment per move in seconds
+          example: 3
+
+    Variant:
+      type: object
+      properties:
+        key:
+          type: string
+          example: standard
+        name:
+          type: string
+          example: Standard
+
+    BotRef:
+      type: object
+      properties:
+        id:
+          type: string
+          example: bot_abc
+        name:
+          type: string
+          example: StockfishClone
+
+    Standing:
+      type: object
+      properties:
+        page:
+          type: integer
+          example: 1
+        players:
+          type: array
+          items:
+            $ref: "#/components/schemas/Result"
+
+    TournamentInfo:
+      description: Lightweight tournament summary used in list responses.
+      type: object
+      properties:
+        id:
+          type: string
+          example: t7kXq2
+        fullName:
+          type: string
+          example: Friday Night Bots Swiss
+        clock:
+          $ref: "#/components/schemas/Clock"
+        variant:
+          $ref: "#/components/schemas/Variant"
+        rated:
+          type: boolean
+          example: true
+        nbPlayers:
+          type: integer
+          example: 8
+        nbRounds:
+          type: integer
+          example: 5
+        createdBy:
+          type: string
+          example: userId
+        startsAt:
+          type: string
+          format: date-time
+
+    Tournament:
+      allOf:
+        - $ref: "#/components/schemas/TournamentInfo"
+        - type: object
+          properties:
+            status:
+              type: string
+              enum: [created, started, finished]
+              example: started
+            round:
+              type: integer
+              description: Current round number
+              example: 2
+            standing:
+              $ref: "#/components/schemas/Standing"
+            winner:
+              description: Present only when status is `finished`
+              allOf:
+                - $ref: "#/components/schemas/BotRef"
+              nullable: true
+
+    CreateTournamentForm:
+      type: object
+      required: [name, nbRounds, clockLimit, clockIncrement]
+      properties:
+        name:
+          type: string
+          example: Friday Night Bots
+        nbRounds:
+          type: integer
+          minimum: 1
+          example: 5
+        clockLimit:
+          type: integer
+          description: Base time in seconds
+          example: 300
+        clockIncrement:
+          type: integer
+          description: Increment per move in seconds
+          example: 3
+        rated:
+          type: boolean
+          default: true
+
+    Result:
+      type: object
+      properties:
+        rank:
+          type: integer
+          example: 1
+        points:
+          type: number
+          format: double
+          example: 3.5
+        tieBreak:
+          type: number
+          format: double
+          description: Buchholz score (sum of opponents' points)
+          example: 9.0
+        bot:
+          $ref: "#/components/schemas/BotRef"
+        nbGames:
+          type: integer
+          example: 4
+        wins:
+          type: integer
+          example: 3
+        draws:
+          type: integer
+          example: 1
+        losses:
+          type: integer
+          example: 0
+
+    Pairing:
+      type: object
+      properties:
+        round:
+          type: integer
+          example: 2
+        white:
+          $ref: "#/components/schemas/BotRef"
+        black:
+          $ref: "#/components/schemas/BotRef"
+        gameId:
+          type: string
+          example: j0nPtcjl
+        winner:
+          type: string
+          enum: [white, black, draw]
+          nullable: true
+          description: Null while the game is ongoing
+
+    GameExport:
+      description: One game object per NDJSON line.
+      type: object
+      properties:
+        id:
+          type: string
+          example: j0nPtcjl
+        round:
+          type: integer
+          example: 2
+        white:
+          $ref: "#/components/schemas/BotRef"
+        black:
+          $ref: "#/components/schemas/BotRef"
+        winner:
+          type: string
+          enum: [white, black, draw]
+          nullable: true
+        moves:
+          type: string
+          description: Space-separated UCI moves
+          example: e2e4 e7e5 g1f3
+
+    TournamentEvent:
+      description: |
+        One JSON object per NDJSON line. Discriminate on `type`.
+
+        | type | extra fields |
+        |------|-------------|
+        | `tournamentStarted` | — |
+        | `roundStarted` | `round` |
+        | `gameStart` | `round`, `gameId`, `color` |
+        | `roundFinished` | `round` |
+        | `tournamentFinished` | `winner` |
+      type: object
+      required: [type]
+      properties:
+        type:
+          type: string
+          enum:
+            - tournamentStarted
+            - roundStarted
+            - gameStart
+            - roundFinished
+            - tournamentFinished
+        round:
+          type: integer
+          example: 2
+        gameId:
+          type: string
+          example: j0nPtcjl
+        color:
+          type: string
+          enum: [white, black]
+        winner:
+          $ref: "#/components/schemas/BotRef"
+
+    Ok:
+      type: object
+      properties:
+        ok:
+          type: boolean
+          example: true
+
+    Error:
+      type: object
+      properties:
+        error:
+          type: string
+          example: tournament already started
+
+  responses:
+    BadRequest:
+      description: Invalid request body or parameters
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Unauthorized:
+      description: Missing or invalid JWT
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Forbidden:
+      description: Action not permitted for this user or bot
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    NotFound:
+      description: Tournament not found
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"
+    Conflict:
+      description: Conflicting state (e.g. already started, bot already joined)
+      content:
+        application/json:
+          schema:
+            $ref: "#/components/schemas/Error"

modules/account/CHANGELOG.md

@@ -283,3 +283,68 @@
 
 * Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
 * Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-19)
+
+### Features
+
+* **account:** implement token pair handling for login and refresh endpoints ([9296db8](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/9296db88b7131bbda9b9b0da65c327ef9063ee31))
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+* **tests:** update token path to accessToken in ChallengeResourceTest ([354db11](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/354db11972342c47a1034303c11bccfb92e60109))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-21)
+
+### Features
+
+* **account:** implement token pair handling for login and refresh endpoints ([9296db8](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/9296db88b7131bbda9b9b0da65c327ef9063ee31))
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add H2 database configuration for testing environment ([39c9e49](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/39c9e492cef2515368c074da9406f95e9c0c9e64))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* **account:** configure JDBC connection pool size to prevent exhaustion under load ([29072ef](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/29072efbfb1cfa1c3b1a85b4c1a587c971d245f9))
+* **auth:** add InternalClientHeadersFactory for custom client headers management ([e279c39](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e279c39246470156bf11e745ee72204018d4229d))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+* **tests:** update token path to accessToken in ChallengeResourceTest ([354db11](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/354db11972342c47a1034303c11bccfb92e60109))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))

modules/account/src/main/resources/application.yml

@@ -76,6 +76,9 @@ nowchess:
       password: ${DB_PASSWORD}
       jdbc:
         url: ${DB_URL}
+        min-size: 10
+        max-size: 50
+        acquisition-timeout: 30
     hibernate-orm:
       schema-management:
         strategy: update

modules/account/src/main/scala/de/nowchess/account/config/NativeReflectionConfig.scala

@@ -25,7 +25,8 @@ import io.quarkus.runtime.annotations.RegisterForReflection
     classOf[DeclineReason],
     classOf[TimeControl],
     classOf[LoginRequest],
-    classOf[TokenResponse],
+    classOf[RefreshRequest],
+    classOf[TokenPairResponse],
     classOf[PlayerInfo],
     classOf[PublicAccountDto],
     classOf[BotAccountDto],

modules/account/src/main/scala/de/nowchess/account/domain/Challenge.scala

@@ -6,7 +6,6 @@ import scala.compiletime.uninitialized
 
 import java.time.Instant
 import java.util.UUID
-import scala.Conversion
 
 @Entity
 @Table(name = "challenges")
@@ -34,13 +33,14 @@ class Challenge extends PanacheEntityBase:
   @Column(nullable = true, columnDefinition = "varchar(255)")
   var declineReason: DeclineReason = uninitialized
 
-  var timeControlType: String = uninitialized
+  @Column(nullable = true)
+  var limitSeconds: java.lang.Integer = uninitialized
 
   @Column(nullable = true)
-  var timeControlLimit: java.lang.Integer = uninitialized
+  var incrementSeconds: java.lang.Integer = uninitialized
 
   @Column(nullable = true)
-  var timeControlIncrement: java.lang.Integer = uninitialized
+  var daysPerMove: java.lang.Integer = uninitialized
 
   var createdAt: Instant = uninitialized
 
@@ -52,5 +52,6 @@ class Challenge extends PanacheEntityBase:
 
   def gameIdOpt: Option[String]               = Option(gameId)
   def declineReasonOpt: Option[DeclineReason] = Option(declineReason)
-  def timeControlLimitOpt: Option[Int]        = Option(timeControlLimit).map(_.intValue())
-  def timeControlIncrementOpt: Option[Int]    = Option(timeControlIncrement).map(_.intValue())
+  def limitSecondsOpt: Option[Int]            = Option(limitSeconds).map(_.intValue())
+  def incrementSecondsOpt: Option[Int]        = Option(incrementSeconds).map(_.intValue())
+  def daysPerMoveOpt: Option[Int]             = Option(daysPerMove).map(_.intValue())

modules/account/src/main/scala/de/nowchess/account/dto/Dtos.scala

@@ -4,13 +4,15 @@ case class RegisterRequest(username: String, email: String, password: String)
 
 case class LoginRequest(username: String, password: String)
 
-case class TokenResponse(token: String)
+case class RefreshRequest(refreshToken: String)
+
+case class TokenPairResponse(accessToken: String, refreshToken: String)
 
 case class PlayerInfo(id: String, name: String, rating: Int)
 
 case class PublicAccountDto(id: String, username: String, rating: Int, createdAt: String)
 
-case class TimeControlDto(`type`: String, limit: Option[Int], increment: Option[Int])
+case class TimeControlDto(limitSeconds: Option[Int], incrementSeconds: Option[Int], daysPerMove: Option[Int])
 
 case class ChallengeRequest(color: String, timeControl: TimeControlDto)
 

modules/account/src/main/scala/de/nowchess/account/error/AccountError.scala

@@ -4,6 +4,7 @@ enum AccountError:
   case UsernameTaken(username: String)
   case EmailAlreadyRegistered(email: String)
   case InvalidCredentials
+  case InvalidRefreshToken
   case UserNotFound
   case BotNotFound
   case BotLimitExceeded
@@ -15,6 +16,7 @@ enum AccountError:
     case UsernameTaken(u)          => s"Username '$u' is already taken"
     case EmailAlreadyRegistered(e) => s"Email '$e' is already registered"
     case InvalidCredentials        => "Invalid credentials"
+    case InvalidRefreshToken       => "Invalid or expired refresh token"
     case UserNotFound              => "User not found"
     case BotNotFound               => "Bot account not found"
     case BotLimitExceeded          => "Maximum of 5 bot accounts per user exceeded"

modules/account/src/main/scala/de/nowchess/account/resource/AccountResource.scala

@@ -40,8 +40,19 @@ class AccountResource:
   @Path("/login")
   def login(req: LoginRequest): Response =
     accountService.login(req) match
-      case Right(token) =>
-        Response.ok(TokenResponse(token)).build()
+      case Right((accessToken, refreshToken)) =>
+        Response.ok(TokenPairResponse(accessToken, refreshToken)).build()
+      case Left(AccountError.UserBanned) =>
+        Response.status(Response.Status.FORBIDDEN).entity(ErrorDto(AccountError.UserBanned.message)).build()
+      case Left(error) =>
+        Response.status(Response.Status.UNAUTHORIZED).entity(ErrorDto(error.message)).build()
+
+  @POST
+  @Path("/refresh")
+  def refresh(req: RefreshRequest): Response =
+    accountService.refresh(req.refreshToken) match
+      case Right((accessToken, refreshToken)) =>
+        Response.ok(TokenPairResponse(accessToken, refreshToken)).build()
       case Left(AccountError.UserBanned) =>
         Response.status(Response.Status.FORBIDDEN).entity(ErrorDto(AccountError.UserBanned.message)).build()
       case Left(error) =>

modules/account/src/main/scala/de/nowchess/account/service/AccountService.scala

@@ -6,6 +6,7 @@ import de.nowchess.account.error.AccountError
 import de.nowchess.account.repository.{BotAccountRepository, OfficialBotAccountRepository, UserAccountRepository}
 import io.micrometer.core.instrument.MeterRegistry
 import io.quarkus.elytron.security.common.BcryptUtil
+import io.smallrye.jwt.auth.principal.JWTParser
 import io.smallrye.jwt.build.Jwt
 import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
@@ -34,6 +35,9 @@ class AccountService:
 
   @Inject
   var meterRegistry: MeterRegistry = uninitialized
+
+  @Inject
+  var jwtParser: JWTParser = uninitialized
   // scalafix:on
 
   @PostConstruct
@@ -66,7 +70,7 @@ class AccountService:
       log.infof("User %s registered successfully", req.username)
       Right(account)
 
-  def login(req: LoginRequest): Either[AccountError, String] =
+  def login(req: LoginRequest): Either[AccountError, (String, String)] =
     val result = authenticateUser(req)
     result match
       case Right(_) => meterRegistry.counter("nowchess.auth.logins", "result", "success").increment()
@@ -75,7 +79,7 @@ class AccountService:
         meterRegistry.counter("nowchess.auth.login.failures", "reason", loginFailureReason(error)).increment()
     result
 
-  private def authenticateUser(req: LoginRequest): Either[AccountError, String] =
+  private def authenticateUser(req: LoginRequest): Either[AccountError, (String, String)] =
     userAccountRepository.findByUsername(req.username) match
       case None =>
         log.warnf("Login failed for unknown user %s", req.username)
@@ -89,16 +93,39 @@ class AccountService:
           Left(AccountError.UserBanned)
         else
           log.infof("User %s logged in successfully", req.username)
-          Right(
+          Right((generateAccessToken(account), generateRefreshToken(account.id)))
+
+  def refresh(refreshToken: String): Either[AccountError, (String, String)] =
+    try
+      val parsed = jwtParser.parse(refreshToken)
+      if parsed.getClaim[String]("type") != "refresh" then Left(AccountError.InvalidRefreshToken)
+      else
+        val userId = UUID.fromString(parsed.getSubject)
+        userAccountRepository.findById(userId) match
+          case None                => Left(AccountError.UserNotFound)
+          case Some(u) if u.banned => Left(AccountError.UserBanned)
+          case Some(u)             => Right((generateAccessToken(u), generateRefreshToken(u.id)))
+    catch case _: Throwable => Left(AccountError.InvalidRefreshToken)
+
+  private def generateAccessToken(account: UserAccount): String =
     Jwt
       .issuer("nowchess")
       .subject(account.id.toString)
       .claim("username", account.username)
-              .sign(),
-          )
+      .expiresIn(3600)
+      .sign()
+
+  private def generateRefreshToken(userId: UUID): String =
+    Jwt
+      .issuer("nowchess")
+      .subject(userId.toString)
+      .claim("type", "refresh")
+      .expiresIn(30L * 24 * 3600)
+      .sign()
 
   private def loginFailureReason(error: AccountError): String = error match
     case AccountError.InvalidCredentials        => "invalid_credentials"
+    case AccountError.InvalidRefreshToken       => "invalid_refresh_token"
     case AccountError.UserBanned                => "user_banned"
     case AccountError.UsernameTaken(_)          => "username_taken"
     case AccountError.EmailAlreadyRegistered(_) => "email_registered"

modules/account/src/main/scala/de/nowchess/account/service/ChallengeService.scala

@@ -88,9 +88,9 @@ class ChallengeService:
       challenge.destUser = destUser
       challenge.color = color
       challenge.status = ChallengeStatus.Created
-      challenge.timeControlType = req.timeControl.`type`
-      challenge.timeControlLimit = req.timeControl.limit.map(java.lang.Integer.valueOf).orNull
-      challenge.timeControlIncrement = req.timeControl.increment.map(java.lang.Integer.valueOf).orNull
+      challenge.limitSeconds = req.timeControl.limitSeconds.map(java.lang.Integer.valueOf).orNull
+      challenge.incrementSeconds = req.timeControl.incrementSeconds.map(java.lang.Integer.valueOf).orNull
+      challenge.daysPerMove = req.timeControl.daysPerMove.map(java.lang.Integer.valueOf).orNull
       challenge.createdAt = Instant.now()
       challenge.expiresAt = Instant.now().plus(24, ChronoUnit.HOURS)
       challengeRepository.persist(challenge)
@@ -200,10 +200,9 @@ class ChallengeService:
         if ThreadLocalRandom.current().nextBoolean() then (challenger, destUser) else (destUser, challenger)
 
   private def buildTimeControl(challenge: Challenge): Option[CoreTimeControl] =
-    challenge.timeControlType match
-      case "unlimited"      => None
-      case "correspondence" => Some(CoreTimeControl(None, None, challenge.timeControlLimitOpt))
-      case _ => Some(CoreTimeControl(challenge.timeControlLimitOpt, challenge.timeControlIncrementOpt, None))
+    if challenge.limitSecondsOpt.isEmpty && challenge.incrementSecondsOpt.isEmpty && challenge.daysPerMoveOpt.isEmpty
+    then None
+    else Some(CoreTimeControl(challenge.limitSecondsOpt, challenge.incrementSecondsOpt, challenge.daysPerMoveOpt))
 
   private def parseColor(raw: String): Either[ChallengeError, ChallengeColor] =
     raw.toLowerCase match
@@ -227,7 +226,7 @@ class ChallengeService:
       destUser = PlayerInfo(c.destUser.id.toString, c.destUser.username, c.destUser.rating),
       variant = "standard",
       color = c.color.toString.toLowerCase,
-      timeControl = TimeControlDto(c.timeControlType, c.timeControlLimitOpt, c.timeControlIncrementOpt),
+      timeControl = TimeControlDto(c.limitSecondsOpt, c.incrementSecondsOpt, c.daysPerMoveOpt),
       status = c.status.toString.toLowerCase,
       declineReason = c.declineReasonOpt.map(_.toString.toLowerCase),
       gameId = c.gameIdOpt,

modules/account/src/test/scala/de/nowchess/account/resource/AccountResourceTest.scala

@@ -32,7 +32,24 @@ class AccountResourceTest:
       .`then`()
       .statusCode(200)
       .extract()
-      .path[String]("token")
+      .path[String]("accessToken")
+
+  private def registerAndLoginPair(username: String): (String, String) =
+    givenRequest()
+      .body(registerBody(username))
+      .when()
+      .post("/api/account")
+      .`then`()
+      .statusCode(200)
+    val resp = givenRequest()
+      .body(loginBody(username))
+      .when()
+      .post("/api/account/login")
+      .`then`()
+      .statusCode(200)
+      .extract()
+      .response()
+    (resp.path[String]("accessToken"), resp.path[String]("refreshToken"))
 
   @Test
   def registerReturns200(): Unit =
@@ -57,7 +74,7 @@ class AccountResourceTest:
       .body("error", containsString("bob"))
 
   @Test
-  def loginReturns200WithToken(): Unit =
+  def loginReturns200WithTokenPair(): Unit =
     givenRequest().body(registerBody("charlie")).when().post("/api/account")
     givenRequest()
       .body(loginBody("charlie"))
@@ -65,7 +82,8 @@ class AccountResourceTest:
       .post("/api/account/login")
       .`then`()
       .statusCode(200)
-      .body("token", notNullValue())
+      .body("accessToken", notNullValue())
+      .body("refreshToken", notNullValue())
 
   @Test
   def loginUnauthorizedOnWrongPassword(): Unit =
@@ -105,3 +123,34 @@ class AccountResourceTest:
       .get("/api/account/doesnotexist")
       .`then`()
       .statusCode(404)
+
+  @Test
+  def refreshReturnsNewTokenPair(): Unit =
+    val (_, refreshToken) = registerAndLoginPair("refresh_user")
+    givenRequest()
+      .body(s"""{"refreshToken":"$refreshToken"}""")
+      .when()
+      .post("/api/account/refresh")
+      .`then`()
+      .statusCode(200)
+      .body("accessToken", notNullValue())
+      .body("refreshToken", notNullValue())
+
+  @Test
+  def refreshWithInvalidTokenReturns401(): Unit =
+    givenRequest()
+      .body("""{"refreshToken":"invalid.token.value"}""")
+      .when()
+      .post("/api/account/refresh")
+      .`then`()
+      .statusCode(401)
+
+  @Test
+  def refreshWithAccessTokenReturns401(): Unit =
+    val accessToken = registerAndLogin("refresh_bad_type")
+    givenRequest()
+      .body(s"""{"refreshToken":"$accessToken"}""")
+      .when()
+      .post("/api/account/refresh")
+      .`then`()
+      .statusCode(401)

modules/account/src/test/scala/de/nowchess/account/resource/ChallengeResourceTest.scala

@@ -41,10 +41,10 @@ class ChallengeResourceTest:
       .`then`()
       .statusCode(200)
       .extract()
-      .path[String]("token")
+      .path[String]("accessToken")
 
   private val clockBody =
-    """{"color":"random","timeControl":{"type":"clock","limit":300,"increment":5}}"""
+    """{"color":"random","timeControl":{"limitSeconds":300,"incrementSeconds":5}}"""
 
   private def authed(token: String) =
     givenRequest().header("Authorization", s"Bearer $token")

modules/account/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=16
+MINOR=18
 PATCH=0

modules/api/CHANGELOG.md

@@ -109,3 +109,21 @@
 ### Bug Fixes
 
 * IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-22)
+
+### Features
+
+* **dto:** update GameWritebackEventDto for JSON deserialization and remove unused mixin ([576e3fe](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/576e3fea9bf1082549ea53efd3288474c42be93d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **dependencies:** correct Jackson databind dependency group ID ([008d72d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/008d72d826707c04205bac7de25170fae5fed861))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))

modules/api/build.gradle.kts

@@ -49,6 +49,7 @@ dependencies {
             strictly(versions["SCALA_LIBRARY"]!!)
         }
     }
+    implementation("com.fasterxml.jackson.core:jackson-databind:${versions["JACKSON"]!!}")
 
     testImplementation(platform("org.junit:junit-bom:5.13.4"))
     testImplementation("org.junit.jupiter:junit-jupiter")

modules/api/src/main/scala/de/nowchess/api/dto/GameWritebackEventDto.scala

@@ -1,5 +1,7 @@
 package de.nowchess.api.dto
 
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize
+
 case class GameWritebackEventDto(
     gameId: String,
     fen: String,
@@ -14,11 +16,11 @@ case class GameWritebackEventDto(
     limitSeconds: Option[Int],
     incrementSeconds: Option[Int],
     daysPerMove: Option[Int],
-    whiteRemainingMs: Option[Long],
-    blackRemainingMs: Option[Long],
-    incrementMs: Option[Long],
-    clockLastTickAt: Option[Long],
-    clockMoveDeadline: Option[Long],
+    @JsonDeserialize(contentAs = classOf[java.lang.Long]) whiteRemainingMs: Option[Long],
+    @JsonDeserialize(contentAs = classOf[java.lang.Long]) blackRemainingMs: Option[Long],
+    @JsonDeserialize(contentAs = classOf[java.lang.Long]) incrementMs: Option[Long],
+    @JsonDeserialize(contentAs = classOf[java.lang.Long]) clockLastTickAt: Option[Long],
+    @JsonDeserialize(contentAs = classOf[java.lang.Long]) clockMoveDeadline: Option[Long],
     clockActiveColor: Option[String],
     pendingDrawOffer: Option[String],
     result: Option[String] = None,

modules/api/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=12
+MINOR=13
 PATCH=0

modules/coordinator/CHANGELOG.md

@@ -615,3 +615,367 @@
 * streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
 * update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
 * update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-16)
+
+### Features
+
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-16)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-17)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* remove unused clearDrainingByPodName method and update HealthMonitor to clear draining instances ([1a02f9e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1a02f9e18673d0038e9a307fee5ea5219dc76af8))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-17)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* refresh Redis TTL on instance heartbeat to prevent false DEAD marking ([2d76c00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2d76c001fe22868190a546f1794cf0ade36bb9a9))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* remove redundant line break in LoadBalancer.scala for improved readability ([5205468](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/520546853447e0e0992b258c264272f8f7b8b438))
+* remove unused clearDrainingByPodName method and update HealthMonitor to clear draining instances ([1a02f9e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1a02f9e18673d0038e9a307fee5ea5219dc76af8))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-17)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* correct pod matching logic from endsWith to contains ([6dbe1e6](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6dbe1e62ac74f4ddbf03049b20184f7fac793f81))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* refresh Redis TTL on instance heartbeat to prevent false DEAD marking ([2d76c00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2d76c001fe22868190a546f1794cf0ade36bb9a9))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* remove redundant line break in LoadBalancer.scala for improved readability ([5205468](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/520546853447e0e0992b258c264272f8f7b8b438))
+* remove unused clearDrainingByPodName method and update HealthMonitor to clear draining instances ([1a02f9e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1a02f9e18673d0038e9a307fee5ea5219dc76af8))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-17)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* correct pod matching logic from endsWith to contains ([6dbe1e6](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6dbe1e62ac74f4ddbf03049b20184f7fac793f81))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* refresh Redis TTL on instance heartbeat to prevent false DEAD marking ([2d76c00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2d76c001fe22868190a546f1794cf0ade36bb9a9))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* remove redundant line break in LoadBalancer.scala for improved readability ([5205468](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/520546853447e0e0992b258c264272f8f7b8b438))
+* remove unused clearDrainingByPodName method and update HealthMonitor to clear draining instances ([1a02f9e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1a02f9e18673d0038e9a307fee5ea5219dc76af8))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* revert pod matching to original logic instanceId.contains(podName) ([9bf995f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/9bf995f47d4dec19dd62ce2f7d52286ec2aa575f))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))
+##  (2026-05-18)
+
+### Features
+
+* add configurable CPU and memory scaling thresholds for auto-scaling ([a07bf89](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a07bf89fae43e3ef5fdd30aed0429742a95f8bbe))
+* add coordinator startup validation and K8s pod watch ([81b045d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/81b045d01bb054a4bc9dc9e02fc30f814e756205))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* add periodic health check to evict dead instances ([380a2cc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/380a2cceeb5873bf93ff17a1e87d62408ef8e178))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* force delete pod immediately on heartbeat loss ([a9f4606](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a9f4606b40fcaf9ec59fc2503a40054264bcbccf))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement clock expiry scanning and handling for game records ([#54](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/54)) ([2e4ba43](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2e4ba435978ef415b4ee2d7d2fc4af3b4e834b3d))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* scale up on high CPU load, not just subscription count ([255e2da](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/255e2da33c37e186ed14f2862f2d2e1b4adc59bf))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* add instance-dead-timeout configuration and update HealthMonitor to use it for stale instance eviction ([be0b710](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/be0b710543b542da5c301efef7d2d587d0ba758a))
+* clean up code formatting and improve error handling in gRPC server and failover service ([ad9495a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ad9495afa3e93593b57154a187346c9b01393911))
+* coordinator auto-scaling, cache eviction, rebalancing, and grpc timeouts ([d0c7169](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d0c71693bb6f55fafdce5bcea0d5f38b9bb505ef))
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* correct pod matching logic from endsWith to contains ([6dbe1e6](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6dbe1e62ac74f4ddbf03049b20184f7fac793f81))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* don't block event loop during scale-down drain ([1d121c7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1d121c727cbd4df477827cf64d065b7356a56e59))
+* don't trigger scale-down if already at min replicas ([4b3b5e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4b3b5e7c4ed9b3cd4fe2490e9f268f2e3a0d9e85))
+* enhance AutoScaler and InstanceRegistry for replica management and stale instance eviction ([b4920d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4920d3817e58bda94d7764e608b856ce9a909f7))
+* force-delete hanging pods and remove failed instances from registry ([960a419](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/960a419792e1161fb7241e465b7349efe4a10137))
+* improve pod instance ID matching logic in AutoScaler and HealthMonitor ([f109fe3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f109fe3860371dd0be3434b10a721936dc258b16))
+* linter formatting and improve code readability ([4a36096](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4a36096a5586e3f321d9c34c53e60d02bcc02c55))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* refresh Redis TTL on instance heartbeat to prevent false DEAD marking ([2d76c00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2d76c001fe22868190a546f1794cf0ade36bb9a9))
+* remove corrupted instances immediately and evict dead instances ([43184d2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43184d296da5a6a7b760ac90c2b739220d86bce3))
+* remove redundant line break in LoadBalancer.scala for improved readability ([5205468](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/520546853447e0e0992b258c264272f8f7b8b438))
+* remove unused clearDrainingByPodName method and update HealthMonitor to clear draining instances ([1a02f9e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1a02f9e18673d0038e9a307fee5ea5219dc76af8))
+* replace null checks with Option in coordinator ([2b04d7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2b04d7fa713e06662bff5afe3fb3f9d04541ce51))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* revert pod matching to original logic instanceId.contains(podName) ([9bf995f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/9bf995f47d4dec19dd62ce2f7d52286ec2aa575f))
+* scalafix violations in metrics check and health monitor ([b991878](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b99187821489b296d66da5a5a13f5d545b6045c6))
+* scale up immediately when instance is lost ([43525d4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/43525d41a3884c00f1db26bf3c8c4cd9a607c260))
+* streamline logging for evicted instances in InstanceRegistry ([10937e7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/10937e756a56e0e8fcf939decfdcaa4394506cc0))
+* update grpcServer variable to use Instance wrapper and add optional access method ([d5c8da2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d5c8da20f8805199e920ea5afbd9cdb39a078e40))
+* update HealthMonitor to evict instances without associated pods ([0f41f13](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0f41f13ce68b76846684bab67241a122250dfaf9))

modules/coordinator/src/main/resources/application.yml

@@ -47,6 +47,8 @@ nowchess:
     k8s-rollout-label-selector: "app=nowchess-core"
     startup-validation-timeout: 15s
     failover-wait-timeout: 30s
+    scale-cpu-threshold-percent: 0.8
+    scale-memory-threshold-percent: 0.8
 
 ---
 # dev profile

modules/coordinator/src/main/scala/de/nowchess/coordinator/config/CoordinatorConfig.scala

@@ -62,3 +62,9 @@ trait CoordinatorConfig:
 
   @WithName("failover-wait-timeout")
   def failoverWaitTimeout: Duration
+
+  @WithName("scale-cpu-threshold-percent")
+  def scaleCpuThresholdPercent: Double
+
+  @WithName("scale-memory-threshold-percent")
+  def scaleMemoryThresholdPercent: Double

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/AutoScaler.scala

@@ -50,9 +50,6 @@ class AutoScaler:
   def clearDraining(instanceId: String): Unit =
     drainingForScaleDown.remove(instanceId)
 
-  def clearDrainingByPodName(podName: String): Unit =
-    drainingForScaleDown.asScala.find(podName.contains).foreach(drainingForScaleDown.remove)
-
   private def kubeClientOpt: Option[KubernetesClient] =
     if kubeClientInstance.isUnsatisfied then None
     else Some(kubeClientInstance.get())
@@ -84,33 +81,81 @@ class AutoScaler:
     }
   // scalafix:on DisableSyntax.asInstanceOf
 
+  private def parseMillicores(s: String): Long =
+    if s.endsWith("n") then s.dropRight(1).toLongOption.map(_ / 1000000).getOrElse(0L)
+    else if s.endsWith("m") then s.dropRight(1).toLongOption.getOrElse(0L)
+    else s.toLongOption.map(_ * 1000).getOrElse(0L)
+
+  private def parseBytes(s: String): Long =
+    if s.endsWith("Ki") then s.dropRight(2).toLongOption.map(_ * 1024L).getOrElse(0L)
+    else if s.endsWith("Mi") then s.dropRight(2).toLongOption.map(_ * 1024L * 1024L).getOrElse(0L)
+    else if s.endsWith("Gi") then s.dropRight(2).toLongOption.map(_ * 1024L * 1024L * 1024L).getOrElse(0L)
+    else if s.endsWith("K") then s.dropRight(1).toLongOption.map(_ * 1000L).getOrElse(0L)
+    else if s.endsWith("M") then s.dropRight(1).toLongOption.map(_ * 1000L * 1000L).getOrElse(0L)
+    else if s.endsWith("G") then s.dropRight(1).toLongOption.map(_ * 1000L * 1000L * 1000L).getOrElse(0L)
+    else s.toLongOption.getOrElse(0L)
+
+  private def exceedsRatio(
+      used: Long,
+      request: Long,
+      threshold: Double,
+      resource: String,
+      instanceId: String,
+  ): Boolean =
+    if request <= 0 then false
+    else
+      val ratio = used.toDouble / request.toDouble
+      log.debugf(
+        "Instance %s %s: %d used / %d requested = %.0f%%",
+        instanceId,
+        resource,
+        used,
+        request,
+        ratio * 100,
+      )
+      ratio > threshold
+
   // scalafix:off DisableSyntax.asInstanceOf
   private def isResourceConstrained(instanceId: String): Boolean =
     kubeClientOpt.fold(false) { kube =>
       try
         val pods =
           kube.pods().inNamespace(config.k8sNamespace).withLabel(config.k8sRolloutLabelSelector).list().getItems.asScala
-        pods.find(_.getMetadata.getName.contains(instanceId)).exists { pod =>
+        pods.find(pod => instanceId.contains(pod.getMetadata.getName)).exists { pod =>
           try
+            val requests = Option(pod.getSpec)
+              .flatMap(s => Option(s.getContainers))
+              .flatMap(cs => if cs.isEmpty then None else Option(cs.get(0)))
+              .flatMap(c => Option(c.getResources))
+              .flatMap(r => Option(r.getRequests))
+
+            val cpuRequestMillis =
+              requests.flatMap(m => Option(m.get("cpu"))).map(q => parseMillicores(q.toString)).getOrElse(0L)
+            val memRequestBytes =
+              requests.flatMap(m => Option(m.get("memory"))).map(q => parseBytes(q.toString)).getOrElse(0L)
+
+            if cpuRequestMillis <= 0 && memRequestBytes <= 0 then
+              log.debugf("No resource requests found for instance %s, skipping resource check", instanceId)
+              false
+            else
               val metricsRes = kube
                 .genericKubernetesResources(metricsApiVersion, "PodMetrics")
                 .inNamespace(config.k8sNamespace)
                 .withName(pod.getMetadata.getName)
                 .get()
               val metricsMap = metricsRes.asInstanceOf[java.util.Map[String, AnyRef]]
-            Option(metricsMap.get("metrics"))
+              val usageOpt = Option(metricsMap.get("metrics"))
                 .map(_.asInstanceOf[java.util.Map[String, AnyRef]])
                 .flatMap(m => Option(m.get("containers")).map(_.asInstanceOf[java.util.List[AnyRef]]))
                 .filter(!_.isEmpty)
                 .map(_.get(0).asInstanceOf[java.util.Map[String, AnyRef]])
                 .flatMap(c => Option(c.get("usage")).map(_.asInstanceOf[java.util.Map[String, AnyRef]]))
-              .flatMap(u => Option(u.get("cpu")))
-              .map(_.toString)
-              .exists { cpuStr =>
-                val cpuMillis =
-                  if cpuStr.endsWith("m") then cpuStr.dropRight(1).toLongOption.getOrElse(0L)
-                  else cpuStr.toLongOption.map(_ * 1000).getOrElse(0L)
-                cpuMillis > 800
+
+              usageOpt.exists { usage =>
+                val cpuUsed = Option(usage.get("cpu")).map(v => parseMillicores(v.toString)).getOrElse(0L)
+                val memUsed = Option(usage.get("memory")).map(v => parseBytes(v.toString)).getOrElse(0L)
+                exceedsRatio(cpuUsed, cpuRequestMillis, config.scaleCpuThresholdPercent, "CPU", instanceId) ||
+                exceedsRatio(memUsed, memRequestBytes, config.scaleMemoryThresholdPercent, "memory", instanceId)
               }
           catch case _: Exception => false
         }
@@ -129,12 +174,22 @@ class AutoScaler:
         val instances = instanceRegistry.getAllInstances.filter(_.state == "HEALTHY")
         if instances.nonEmpty then
           val avgLoad       = instances.map(_.subscriptionCount).sum.toDouble / instances.size
+          val scaleUpLoad   = config.scaleUpThreshold * config.maxGamesPerCore
+          val scaleDownLoad = config.scaleDownThreshold * config.maxGamesPerCore
           avgLoadRef.set(avgLoad)
 
-          val hasHighCpuOrMemory = instances.exists(inst => isResourceConstrained(inst.instanceId))
+          val constrainedInstance = instances.find(inst => isResourceConstrained(inst.instanceId))
+          val hasHighCpuOrMemory  = constrainedInstance.isDefined
 
-          if avgLoad > config.scaleUpThreshold * config.maxGamesPerCore || hasHighCpuOrMemory then scaleUp()
-          else if avgLoad < config.scaleDownThreshold * config.maxGamesPerCore && instances.size > config.scaleMinReplicas
+          log.infof(
+            "Scale check: instances=%d avgLoad=%.1f resourceConstrained=%s",
+            instances.size,
+            avgLoad,
+            constrainedInstance.map(_.instanceId).getOrElse("none"),
+          )
+
+          if hasHighCpuOrMemory then scaleUp()
+          if !hasHighCpuOrMemory && avgLoad < scaleDownLoad && instances.size > config.scaleMinReplicas
           then scaleDown()
 
   private def patchRolloutReplicas(
@@ -242,7 +297,7 @@ class AutoScaler:
         .list()
         .getItems
         .asScala
-      pods.find(_.getMetadata.getName.contains(instanceId)) match
+      pods.find(pod => instanceId.contains(pod.getMetadata.getName)) match
         case Some(pod) =>
           kube.pods().inNamespace(config.k8sNamespace).withName(pod.getMetadata.getName).withGracePeriod(0L).delete()
           log.infof("Force-deleted pod for drained instance %s", instanceId)

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/CacheEvictionManager.scala

@@ -75,6 +75,7 @@ class CacheEvictionManager:
               try
                 coreGrpcClient.evictGames(instance.hostname, instance.grpcPort, List(gameId))
                 redis.key(classOf[String]).del(key)
+                redis.key(classOf[String]).del(s"$redisPrefix:game:$gameId:instance")
                 meterRegistry.counter("nowchess.coordinator.cache.evictions").increment()
                 log.infof("Evicted idle game %s from %s", gameId, instance.instanceId)
                 count + 1
@@ -96,16 +97,17 @@ class CacheEvictionManager:
   private def extractLastUpdatedTimestamp(json: String): Long =
     Try {
       val parsed = objectMapper.readTree(json)
-      Option(parsed.get("lastHeartbeat"))
-        .filter(_.isTextual)
-        .fold(0L)(lh => Instant.parse(lh.asText()).toEpochMilli)
+      Option(parsed.get("lastUpdatedMs"))
+        .filter(_.isNumber)
+        .fold(0L)(_.asLong())
     }.getOrElse(0L)
 
   private def findInstanceWithGame(gameId: String): Option[de.nowchess.coordinator.dto.InstanceMetadata] =
     try
-      instanceRegistry.getAllInstances.find { instance =>
-        val setKey = s"$redisPrefix:instance:${instance.instanceId}:games"
-        redis.set(classOf[String]).sismember(setKey, gameId)
+      val mapKey = s"$redisPrefix:game:$gameId:instance"
+      Option(redis.value(classOf[String]).get(mapKey))
+        .flatMap { instanceId =>
+          instanceRegistry.getInstance(instanceId)
         }
     catch
       case ex: Exception =>

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/FailoverService.scala

@@ -1,6 +1,7 @@
 package de.nowchess.coordinator.service
 
 import jakarta.enterprise.context.ApplicationScoped
+import jakarta.enterprise.inject.Instance
 import jakarta.inject.Inject
 import io.quarkus.redis.datasource.RedisDataSource
 import scala.jdk.CollectionConverters.*
@@ -9,6 +10,7 @@ import org.jboss.logging.Logger
 import de.nowchess.coordinator.dto.InstanceMetadata
 import de.nowchess.coordinator.grpc.CoreGrpcClient
 import de.nowchess.coordinator.config.CoordinatorConfig
+import io.fabric8.kubernetes.client.KubernetesClient
 import io.smallrye.mutiny.Uni
 import java.time.Duration
 
@@ -27,10 +29,17 @@ class FailoverService:
   @Inject
   private var config: CoordinatorConfig = uninitialized
 
+  @Inject
+  private var kubeClientInstance: Instance[KubernetesClient] = uninitialized
+
   private val log         = Logger.getLogger(classOf[FailoverService])
   private var redisPrefix = "nowchess"
   // scalafix:on DisableSyntax.var
 
+  private def kubeClientOpt: Option[KubernetesClient] =
+    if kubeClientInstance.isUnsatisfied then None
+    else Some(kubeClientInstance.get())
+
   def setRedisPrefix(prefix: String): Unit =
     redisPrefix = prefix
 
@@ -39,6 +48,7 @@ class FailoverService:
 
     val startTime = System.currentTimeMillis()
     instanceRegistry.markInstanceDead(instanceId)
+    deleteK8sPod(instanceId)
 
     val gameIds = getOrphanedGames(instanceId)
     log.infof("Found %d orphaned games for instance %s", gameIds.size, instanceId)
@@ -107,6 +117,7 @@ class FailoverService:
         try
           val subscribed = coreGrpcClient.batchResubscribeGames(target.hostname, target.grpcPort, batch)
           if subscribed > 0 then
+            updateGameInstanceMappings(batch, deadId, target.instanceId)
             log.infof("Migrated %d games from %s to %s", subscribed, deadId, target.instanceId)
             true
           else false
@@ -116,6 +127,43 @@ class FailoverService:
             false
       if success then true else tryMigrateBatch(batch, batchIdx, instances, deadId, attempt + 1)
 
+  private def updateGameInstanceMappings(gameIds: List[String], deadId: String, targetId: String): Unit =
+    try
+      val fromKey = s"$redisPrefix:instance:$deadId:games"
+      val toKey   = s"$redisPrefix:instance:$targetId:games"
+      gameIds.foreach { gameId =>
+        redis.set(classOf[String]).sadd(toKey, gameId)
+        redis.value(classOf[String]).set(s"$redisPrefix:game:$gameId:instance", targetId)
+      }
+    catch
+      case ex: Exception =>
+        log.errorf(ex, "Failed to update game instance mappings")
+
+  private def deleteK8sPod(instanceId: String): Unit =
+    kubeClientOpt match
+      case None =>
+        log.debugf("Kubernetes client not available, skipping pod deletion for %s", instanceId)
+      case Some(kube) =>
+        try
+          val pods = kube
+            .pods()
+            .inNamespace(config.k8sNamespace)
+            .withLabel(config.k8sRolloutLabelSelector)
+            .list()
+            .getItems
+            .asScala
+
+          pods.find(pod => instanceId.contains(pod.getMetadata.getName)) match
+            case Some(pod) =>
+              val podName = pod.getMetadata.getName
+              kube.pods().inNamespace(config.k8sNamespace).withName(podName).withGracePeriod(0L).delete()
+              log.infof("Force-deleted pod %s for dead instance %s", podName, instanceId)
+            case None =>
+              log.debugf("No pod found for instance %s, skipping deletion", instanceId)
+        catch
+          case ex: Exception =>
+            log.errorf(ex, "Failed to delete pod for instance %s", instanceId)
+
   private def cleanupDeadInstance(instanceId: String): Unit =
     val setKey = s"$redisPrefix:instance:$instanceId:games"
     redis.key(classOf[String]).del(setKey)

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/HealthMonitor.scala

@@ -88,8 +88,7 @@ class HealthMonitor:
     if evicted.nonEmpty then
       log.warnf("Evicted %d stale instances: %s", evicted.size, evicted.mkString(", "))
       evicted.foreach(deleteK8sPod)
-      val unexpectedEvictions = evicted.filterNot(autoScaler.isDrainingForScaleDown)
-      if unexpectedEvictions.nonEmpty then autoScaler.scaleUp()
+      evicted.foreach(autoScaler.clearDraining)
     val instances = instanceRegistry.getAllInstances
     val failed = instances.collect { inst =>
       val isHealthy = checkHealth(inst.instanceId)
@@ -100,8 +99,6 @@ class HealthMonitor:
         Some(inst.instanceId)
       else None
     }.flatten
-    val unexpectedFailures = failed.filterNot(autoScaler.isDrainingForScaleDown)
-    if unexpectedFailures.nonEmpty then autoScaler.scaleUp()
 
   private def checkHealth(instanceId: String): Boolean =
     val redisHealthy = checkRedisHeartbeat(instanceId)
@@ -130,7 +127,7 @@ class HealthMonitor:
 
         pods.exists { pod =>
           val podName = pod.getMetadata.getName
-          podName.contains(instanceId) && isPodReady(pod)
+          instanceId.contains(podName) && isPodReady(pod)
         }
       catch
         case ex: Exception =>
@@ -184,7 +181,7 @@ class HealthMonitor:
             .getItems
             .asScala
 
-          pods.find(pod => pod.getMetadata.getName.contains(instanceId)) match
+          pods.find(pod => instanceId.contains(pod.getMetadata.getName)) match
             case Some(pod) =>
               val podName = pod.getMetadata.getName
               kube.pods().inNamespace(config.k8sNamespace).withName(podName).withGracePeriod(0L).delete()
@@ -230,7 +227,6 @@ class HealthMonitor:
 
   private def handlePodGone(pod: Pod): Unit =
     val podName = pod.getMetadata.getName
-    autoScaler.clearDrainingByPodName(podName)
     findRegisteredInstance(pod).foreach { inst =>
       log.warnf("Pod %s deleted — triggering failover for %s", podName, inst.instanceId)
       failoverService
@@ -244,4 +240,4 @@ class HealthMonitor:
 
   private def findRegisteredInstance(pod: Pod): Option[InstanceMetadata] =
     val podName = pod.getMetadata.getName
-    instanceRegistry.getAllInstances.find(inst => podName.contains(inst.instanceId))
+    instanceRegistry.getAllInstances.find(inst => inst.instanceId.contains(podName))

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/InstanceRegistry.scala

@@ -9,6 +9,7 @@ import scala.jdk.CollectionConverters.*
 import scala.compiletime.uninitialized
 import com.fasterxml.jackson.databind.ObjectMapper
 import de.nowchess.coordinator.dto.InstanceMetadata
+import de.nowchess.coordinator.config.CoordinatorConfig
 import java.util.concurrent.ConcurrentHashMap
 import java.time.{Duration, Instant}
 import io.micrometer.core.instrument.{Gauge, MeterRegistry}
@@ -27,6 +28,9 @@ class InstanceRegistry:
 
   @Inject
   private var meterRegistry: MeterRegistry = uninitialized
+
+  @Inject
+  private var config: CoordinatorConfig = uninitialized
   // scalafix:on DisableSyntax.var
 
   private val log       = Logger.getLogger(classOf[InstanceRegistry])
@@ -95,7 +99,13 @@ class InstanceRegistry:
                 metadata.subscriptionCount,
                 metadata.state,
               )
-            Uni.createFrom().item(())
+            val ttlMs = config.heartbeatTtl.toMillis
+            redis
+              .key(classOf[String])
+              .pexpire(key, ttlMs)
+              .map(_ => ())
+              .onFailure()
+              .recoverWithItem(())
           }
         catch
           case ex: Exception =>

modules/coordinator/src/main/scala/de/nowchess/coordinator/service/LoadBalancer.scala

@@ -69,7 +69,7 @@ class LoadBalancer:
 
         val overloaded = instances
           .filter(_.subscriptionCount > config.maxGamesPerCore)
-          .sortBy[Int](_.subscriptionCount)
+          .sortBy(_.subscriptionCount)
           .reverse
         val underloaded = instances
           .filter(_.subscriptionCount < avgLoad * 0.8)
@@ -108,7 +108,9 @@ class LoadBalancer:
   private def getGamesToMove(instanceId: String, count: Int): List[String] =
     try
       val setKey = s"$redisPrefix:instance:$instanceId:games"
-      redis.set(classOf[String]).smembers(setKey).asScala.toList.take(count)
+      val result = scala.collection.mutable.ListBuffer[String]()
+      for _ <- 0 until count do Option(redis.set(classOf[String]).spop(setKey)).foreach(result += _)
+      result.toList
     catch
       case ex: Exception =>
         log.debugf(ex, "Failed to get games for %s", instanceId)
@@ -116,12 +118,10 @@ class LoadBalancer:
 
   private def updateRedisGameSets(fromInstanceId: String, toInstanceId: String, gameIds: List[String]): Unit =
     try
-      val fromKey = s"$redisPrefix:instance:$fromInstanceId:games"
       val toKey = s"$redisPrefix:instance:$toInstanceId:games"
-
       gameIds.foreach { gameId =>
-        redis.set(classOf[String]).srem(fromKey, gameId)
         redis.set(classOf[String]).sadd(toKey, gameId)
+        redis.value(classOf[String]).set(s"$redisPrefix:game:$gameId:instance", toInstanceId)
       }
     catch
       case ex: Exception =>

modules/coordinator/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=25
+MINOR=32
 PATCH=0

modules/core/CHANGELOG.md

@@ -1497,3 +1497,198 @@
 
 * Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
 * Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-17)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add CORS configuration and reorder JWT settings in application.yml ([a49f9be](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a49f9be146f04c14561c305d980846a92f8c12b2))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* update documentation to reflect new functions in CoordinatorGrpcServer and InstanceRegistry ([f7ce4df](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f7ce4df595cbdc2ef84122781f4851ff140c0f44))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-18)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add CORS configuration and reorder JWT settings in application.yml ([a49f9be](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a49f9be146f04c14561c305d980846a92f8c12b2))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* **core:** add logs to trace subscribeGame call in createGame ([f5614c3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f5614c358255598ba1230e42a56b22934d79183c))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* update documentation to reflect new functions in CoordinatorGrpcServer and InstanceRegistry ([f7ce4df](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f7ce4df595cbdc2ef84122781f4851ff140c0f44))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-05-19)
+
+### Features
+
+* add authentication permissions for metrics endpoints in application.yml ([04edd4d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/04edd4d6fd8a63196c36f6d67992832febc9bebb))
+* add CORS configuration and reorder JWT settings in application.yml ([a49f9be](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a49f9be146f04c14561c305d980846a92f8c12b2))
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add GameWritebackEventDto to reflection targets ([87f29a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87f29a720422f538ef70699533500e060337b8ea))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* implement GameRules with isInCheck, legalMoves, gameStatus ([94a02ff](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/94a02ff6849436d9496c70a0f16c21666dae8e4e))
+* implement legal castling ([#1](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/1)) ([00d326c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/00d326c1ba67711fbe180f04e1100c3f01dd0254))
+* implement periodic scaling checks and enhance instance management in AutoScaler ([3f12f69](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f12f695f132b92f634d98df2c037292498b6e86))
+* **logging:** add DEBUG/INFO/WARN logging across services (NCS-72) ([#41](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/41)) ([804a4bf](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/804a4bf179e3dfb19e2be4390e7e543caf5237c6))
+* NCS-10 Implement Pawn Promotion ([#12](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/12)) ([13bfc16](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/13bfc16cfe25db78ec607db523ca6d993c13430c))
+* NCS-11 50-move rule ([#9](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/9)) ([412ed98](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/412ed986a95703a3b282276540153480ceed229d))
+* NCS-13 Implement Threefold Repetition ([#31](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/31)) ([767d305](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/767d3051a76c266050b6335774d66e2db2273c16))
+* NCS-14 implemented insufficient moves rule ([#30](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/30)) ([b0399a4](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b0399a4e489950083066c9538df9a84dcc7a4613))
+* NCS-16 Core Separation via Patterns ([#10](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/10)) ([1361dfc](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1361dfc89553b146864fb8ff3526cf12cf3f293a))
+* NCS-17 Implement basic ScalaFX UI ([#14](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/14)) ([3ff8031](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ff80318b4f16c59733a46498581a5c27f048287))
+* NCS-21 Write Scripts to automate certain tasks ([#15](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/15)) ([8051871](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/80518719d536a087d339fe02530825dc07f8b388))
+* NCS-25 Add linters to keep quality up ([#27](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/27)) ([fd4e67d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fd4e67d4f782a7e955822d90cb909d0a81676fb2))
+* NCS-37 Quarkus integration ([#35](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/35)) ([f088c4e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f088c4e9ffcc498d3d1b6f01e8f50042d5830d55))
+* NCS-40 Rework Draw System ([#34](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/34)) ([33e785d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e785d22af87724839b62ae91dfe74a05b398c3))
+* NCS-41 Bot Platform ([#33](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/33)) ([8744bee](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8744bee2dd20966dae90a09c21a43d5b06f59e00))
+* NCS-53 changed IO to MicroService for easier scaling ([#37](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/37)) ([b5a2966](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b5a2966adafa9650f0f7d601bdeb8fdd13710327))
+* NCS-6 Implementing FEN & PGN ([#7](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/7)) ([f28e69d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f28e69dc181416aa2f221fdc4b45c2cda5efbf07))
+* NCS-78 Add Traceability to the Applications ([#48](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/48)) ([c96a09b](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c96a09bb5cee59fc23205bb63baa8b217a7e1b00))
+* NCS-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* **core:** add logs to trace subscribeGame call in createGame ([f5614c3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f5614c358255598ba1230e42a56b22934d79183c))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* NCS-84 More Verbose Logging ([#51](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/51)) ([4ad92ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/4ad92ab23698267f8faa59c4e18388d4a0042cca))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **redis:** enhance GameRedisSubscriberManager to use ReactiveRedisDataSource and improve subscription handling ([0eb752d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0eb752d4935377f75aab710b7f4eda4b29098e6a))
+* **redis:** prevent concurrent Redis heartbeat refreshes using AtomicBoolean ([847b132](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/847b13202cb909d18ca3304c27ebe17ce2312b8e))
+* **redis:** simplify refreshRedisHeartbeat logic and ensure proper error handling ([1813ea1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/1813ea1d2d5d093f7925f87371b5e29820bf1136))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+* resolve 6 coordinator bugs (cache eviction, rebalance race, pod matching, lookup inefficiency) ([5619c82](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5619c8223ad7091706909eda8c907a29d215fd30))
+* update documentation to reflect new functions in CoordinatorGrpcServer and InstanceRegistry ([f7ce4df](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f7ce4df595cbdc2ef84122781f4851ff140c0f44))
+* update main class path in build configuration and adjust VCS directory mapping ([7b1f8b1](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7b1f8b117623d327232a1a92a8a44d18582e0189))
+* update move validation to check for king safety ([#13](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/13)) ([e5e20c5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5e20c566e368b12ca1dc59680c34e9112bf6762))
+
+### Reverts
+
+* Revert "feat: add authentication permissions for metrics endpoints in application.yml" ([a298417](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a298417b9e4d68dc73bbf40be63d9484536e9f83))
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))

modules/core/src/main/scala/de/nowchess/chess/config/NativeReflectionConfig.scala

@@ -14,6 +14,7 @@ import io.quarkus.runtime.annotations.RegisterForReflection
     classOf[ClockDto],
     classOf[CreateGameRequestDto],
     classOf[ErrorEventDto],
+    classOf[GameWritebackEventDto],
     classOf[GameFullDto],
     classOf[GameFullEventDto],
     classOf[GameStateDto],

modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisSubscriberManager.scala

@@ -20,6 +20,7 @@ import jakarta.enterprise.inject.Instance
 import jakarta.inject.Inject
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
 import scala.util.Try
 import java.util.concurrent.ConcurrentHashMap
 import java.util.function.Consumer
@@ -77,7 +78,8 @@ class GameRedisSubscriberManager:
     s"${redisConfig.prefix}:game:$gameId:s2c"
 
   def subscribeGame(gameId: String): Unit =
-    val writebackFn: String => Unit = json => redis.pubsub(classOf[String]).publish("game-writeback", json)
+    val writebackFn: String => Unit = json =>
+      redis.stream(classOf[String]).xadd(s"${redisConfig.prefix}:game-writeback", Map("data" -> json).asJava)
     val obs = new GameRedisPublisher(
       gameId,
       registry,

modules/core/src/main/scala/de/nowchess/chess/registry/GameCacheDto.scala

@@ -22,4 +22,5 @@ case class GameCacheDto(
     pendingDrawOffer: Option[String],
     redoStack: List[String] = Nil,
     pendingTakebackRequest: Option[String] = None,
+    lastUpdatedMs: Long = System.currentTimeMillis(),
 )

modules/core/src/main/scala/de/nowchess/chess/registry/RedisGameRegistry.scala

@@ -143,6 +143,7 @@ class RedisGameRegistry extends GameRegistry:
         clockMoveDeadline = Option(record.clockMoveDeadline).map(_.longValue),
         clockActiveColor = Option(record.clockActiveColor),
         pendingDrawOffer = Option(record.pendingDrawOffer),
+        lastUpdatedMs = System.currentTimeMillis(),
       )
       (dto, reconstruct(dto))
     } match

modules/core/src/main/scala/de/nowchess/chess/resource/GameResource.scala

@@ -167,7 +167,9 @@ class GameResource:
     val mode  = req.mode.getOrElse(GameMode.Open)
     val entry = newEntry(GameContext.initial, white, black, tc, mode)
     registry.store(entry)
+    log.infof("About to subscribe game %s", entry.gameId)
     subscriberManager.subscribeGame(entry.gameId)
+    log.infof("Subscribed game %s", entry.gameId)
     log.infof(
       "Game %s created — white=%s black=%s mode=%s",
       entry.gameId,

modules/core/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=42
+MINOR=45
 PATCH=0

modules/store/CHANGELOG.md

@@ -256,3 +256,168 @@
 * NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
 * **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
 * remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-17)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-19)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add log message for starting Writeback listener ([b610678](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b610678005de645115f48348e66aa9e6f5deb3d5))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-19)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* **redis:** add @Startup annotation to GameWritebackStreamListener ([d61fe97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d61fe97b4c8e2db5e34b4a14d995297cc09f9435))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add log message for starting Writeback listener ([b610678](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b610678005de645115f48348e66aa9e6f5deb3d5))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-19)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* **redis:** add @Startup annotation to GameWritebackStreamListener ([d61fe97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d61fe97b4c8e2db5e34b4a14d995297cc09f9435))
+* **redis:** use ManagedExecutor for asynchronous writeback processing ([af6b0ed](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/af6b0ed8b73724fcc8f20dfccbe6fe8f84fd792d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add log message for starting Writeback listener ([b610678](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b610678005de645115f48348e66aa9e6f5deb3d5))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-22)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add GameWritebackEventDtoMixin for JSON deserialization ([381161f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/381161f00345612a1789e08243746083dff884c5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* **redis:** add @Startup annotation to GameWritebackStreamListener ([d61fe97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d61fe97b4c8e2db5e34b4a14d995297cc09f9435))
+* **redis:** use ManagedExecutor for asynchronous writeback processing ([af6b0ed](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/af6b0ed8b73724fcc8f20dfccbe6fe8f84fd792d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add log message for starting Writeback listener ([b610678](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b610678005de645115f48348e66aa9e6f5deb3d5))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))
+##  (2026-05-22)
+
+### Features
+
+* add initialization metrics for various services ([d438e97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d438e97f32bdde0bfc63c1b4a8cc810cdd093166))
+* add OpenTelemetry trace configuration with parentbased sampler ([3904d5a](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3904d5ad8ad4930ddee65287a7bfab785a6148f5))
+* **config:** add GameWritebackEventDtoMixin for JSON deserialization ([381161f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/381161f00345612a1789e08243746083dff884c5))
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* configure logging and add OpenTelemetry support ([#49](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/49)) ([d57c488](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d57c4886612d1d92da0e1b79209fc83e6ef537a1))
+* **docker:** add .dockerignore and .gitignore files for build exclusions ([c987d8e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c987d8e258c0e6c4cfbdaa8381c64c410d7a2b83))
+* **docker:** add Dockerfiles for building Quarkus application in native and JVM modes ([3f2d2bb](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3f2d2bb4c97fa8cddba66e1da4427c54236dfeed))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
+* **dto:** update GameWritebackEventDto for JSON deserialization and remove unused mixin ([576e3fe](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/576e3fea9bf1082549ea53efd3288474c42be93d))
+* implement clock expiry scanning and handling for game records ([#53](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/53)) ([8f9eb12](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8f9eb12f663efabe4dc72b94394438652ad0ef02))
+* NCS-78 Add Traceability to the Applications ([#46](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/46)) ([649566e](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/649566eb3fcf38f91c8896a739f74ea318af312d))
+* NCS-78 Add Traceability to the Applications ([#47](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/47)) ([87dfc6c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/87dfc6c2bcce7f7d58fc641bd8d468a2e584c108))
+* **redis:** add @Startup annotation to GameWritebackStreamListener ([d61fe97](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d61fe97b4c8e2db5e34b4a14d995297cc09f9435))
+* **redis:** use ManagedExecutor for asynchronous writeback processing ([af6b0ed](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/af6b0ed8b73724fcc8f20dfccbe6fe8f84fd792d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* update application.yml with new API root paths and add Micrometer and OpenTelemetry dependencies ([72ce262](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/72ce262bc491f94297700e6002fb5d0812e2cc2a))
+
+### Bug Fixes
+
+* ensure full hierarchy registration for reflection in NativeReflectionConfig ([ebba729](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ebba729af3265df1619dfbe46fd1945b2a7e30b7))
+* NCS-85 Database Writeback fails without Logs ([#52](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/52)) ([7323908](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/73239088d985f01aa6b1067ed9097a845e471d4f))
+* **redis:** add log message for starting Writeback listener ([b610678](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b610678005de645115f48348e66aa9e6f5deb3d5))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))
+* remove unused HTTP root-path configurations from application.yml ([3ed3e59](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3ed3e59ee456d54cd3d65ece4f36623e256b9736))

modules/store/src/main/scala/de/nowchess/store/config/NativeReflectionConfig.scala

@@ -9,5 +9,6 @@ import io.quarkus.runtime.annotations.RegisterForReflection
     classOf[GameRecord],
     classOf[GameWritebackEventDto],
   ),
+  registerFullHierarchy = true,
 )
 class NativeReflectionConfig

modules/store/src/main/scala/de/nowchess/store/redis/GameWritebackStreamListener.scala

@@ -2,16 +2,22 @@ package de.nowchess.store.redis
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import de.nowchess.api.dto.GameWritebackEventDto
+import de.nowchess.store.config.RedisConfig
 import de.nowchess.store.service.GameWritebackService
 import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.{StreamMessage, XGroupCreateArgs, XReadGroupArgs}
+import io.quarkus.runtime.Startup
 import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
+import org.eclipse.microprofile.context.ManagedExecutor
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
 import scala.util.{Failure, Success, Try}
-import java.util.function.Consumer
+import java.util.UUID
 
+@Startup
 @ApplicationScoped
 class GameWritebackStreamListener:
   @Inject
@@ -19,20 +25,76 @@ class GameWritebackStreamListener:
   var redis: RedisDataSource                         = uninitialized
   @Inject var objectMapper: ObjectMapper             = uninitialized
   @Inject var writebackService: GameWritebackService = uninitialized
+  @Inject var executor: ManagedExecutor              = uninitialized
+  @Inject var redisConfig: RedisConfig               = uninitialized
   // scalafix:on
 
   private val log       = Logger.getLogger(classOf[GameWritebackStreamListener])
+  private val groupName = "store-writeback"
+
+  private def streamKey = s"${redisConfig.prefix}:game-writeback"
+  private def dlqKey    = s"${redisConfig.prefix}:game-writeback-dlq"
+  private val maxRetries = 3
+  private val consumerId = UUID.randomUUID().toString
 
   @PostConstruct
   def startListening(): Unit =
-    val handler: Consumer[String] = json =>
+    createGroupIfAbsent()
+    executor.submit(new Runnable:
+      def run(): Unit = pollLoop()
+    )
+    log.infof("Started listening to game-writeback stream (consumer=%s)", consumerId)
+
+  private def createGroupIfAbsent(): Unit =
+    Try(redis.stream(classOf[String]).xgroupCreate(streamKey, groupName, "0", new XGroupCreateArgs().mkstream())) match
+      case Failure(ex) if Option(ex.getMessage).exists(_.contains("BUSYGROUP")) => ()
+      case Failure(ex) => log.warnf(ex, "Failed to create consumer group")
+      case Success(_)  => ()
+
+  private def pollLoop(): Unit =
+    while true do
+      Try {
+        val messages = redis.stream(classOf[String]).xreadgroup(
+          groupName,
+          consumerId,
+          streamKey,
+          ">",
+          new XReadGroupArgs().count(10).block(java.time.Duration.ofSeconds(2)),
+        )
+        if messages != null then messages.forEach(msg => handleMessage(msg))
+      } match
+        case Failure(ex) => log.warnf(ex, "Error in writeback poll loop")
+        case Success(_)  => ()
+
+  private def handleMessage(msg: StreamMessage[String, String, String]): Unit =
+    val payload = msg.payload()
+    val json    = payload.get("data")
+    val attempt = Option(payload.get("attempt")).flatMap(_.toIntOption).getOrElse(0)
+
     Try(objectMapper.readValue(json, classOf[GameWritebackEventDto])) match
       case Failure(ex) =>
-          log.errorf(ex, "Failed to parse game-writeback event: %s", json)
+        log.errorf(ex, "Unparseable writeback event, sending to DLQ: %s", json)
+        xadd(dlqKey, json, attempt)
+        ack(msg.id())
       case Success(event) =>
         Try(writebackService.writeBack(event)) match
+          case Success(_) =>
+            ack(msg.id())
+          case Failure(ex) if attempt + 1 < maxRetries =>
+            log.warnf(ex, "Writeback failed for gameId=%s attempt=%d, retrying", event.gameId, attempt)
+            xadd(streamKey, json, attempt + 1)
+            ack(msg.id())
           case Failure(ex) =>
-              log.errorf(ex, "Failed to write back game event for gameId=%s", event.gameId)
+            log.errorf(ex, "Writeback failed for gameId=%s after %d attempts, sending to DLQ", event.gameId, maxRetries)
+            xadd(dlqKey, json, attempt)
+            ack(msg.id())
+
+  private def ack(id: String): Unit =
+    Try(redis.stream(classOf[String]).xack(streamKey, groupName, id)) match
+      case Failure(ex) => log.warnf(ex, "Failed to ack message %s", id)
+      case Success(_)  => ()
+
+  private def xadd(key: String, json: String, attempt: Int): Unit =
+    Try(redis.stream(classOf[String]).xadd(key, Map("data" -> json, "attempt" -> attempt.toString).asJava)) match
+      case Failure(ex) => log.errorf(ex, "Failed to publish to stream %s", key)
       case Success(_)  => ()
-    redis.pubsub(classOf[String]).subscribe("game-writeback", handler)
-    ()

modules/store/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=16
+MINOR=22
 PATCH=0

modules/tournament/build.gradle.kts

@@ -0,0 +1,120 @@
+plugins {
+    id("scala")
+    id("org.scoverage") version "8.1"
+    id("io.quarkus")
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+}
+
+scala {
+    scalaVersion = versions["SCALA3"]!!
+}
+
+scoverage {
+    scoverageVersion.set(versions["SCOVERAGE"]!!)
+}
+
+tasks.withType<ScalaCompile> {
+    scalaCompileOptions.additionalParameters = listOf("-encoding", "UTF-8")
+}
+
+val quarkusPlatformGroupId: String by project
+val quarkusPlatformArtifactId: String by project
+val quarkusPlatformVersion: String by project
+
+dependencies {
+    implementation(project(":modules:api"))
+    implementation(project(":modules:security"))
+
+    runtimeOnly("io.quarkus:quarkus-jdbc-h2")
+
+    compileOnly("org.scala-lang:scala3-compiler_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    implementation("org.scala-lang:scala3-library_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+
+    implementation(platform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))
+    implementation("io.quarkus:quarkus-rest")
+    implementation("io.quarkus:quarkus-rest-jackson")
+    implementation("io.quarkus:quarkus-rest-client-jackson")
+    implementation("io.quarkus:quarkus-config-yaml")
+    implementation("io.quarkus:quarkus-arc")
+    implementation("io.quarkus:quarkus-hibernate-orm-panache")
+    implementation("io.quarkus:quarkus-jdbc-postgresql")
+    implementation("io.quarkus:quarkus-smallrye-jwt")
+    implementation("io.quarkus:quarkus-elytron-security-common")
+    implementation("io.quarkus:quarkus-smallrye-health")
+    implementation("io.quarkus:quarkus-logging-json")
+    implementation("io.quarkus:quarkus-micrometer")
+    implementation("io.quarkus:quarkus-micrometer-registry-prometheus")
+    implementation("io.quarkus:quarkus-opentelemetry")
+    implementation("io.quarkus:quarkus-smallrye-openapi")
+    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
+    implementation("io.quarkus:quarkus-redis-client")
+
+    testImplementation(platform("org.junit:junit-bom:5.13.4"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testImplementation("io.quarkus:quarkus-smallrye-jwt-build")
+    testImplementation("org.scalatest:scalatest_3:${versions["SCALATEST"]!!}")
+    testImplementation("co.helmethair:scalatest-junit-runner:${versions["SCALATEST_JUNIT"]!!}")
+    testImplementation("io.quarkus:quarkus-junit5")
+    testImplementation("io.quarkus:quarkus-junit5-mockito")
+    testImplementation("io.rest-assured:rest-assured")
+    testImplementation("io.quarkus:quarkus-jdbc-h2")
+    testImplementation("io.quarkus:quarkus-test-security")
+
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+configurations.matching { !it.name.startsWith("scoverage") }.configureEach {
+    resolutionStrategy.force("org.scala-lang:scala-library:${versions["SCALA_LIBRARY"]!!}")
+}
+configurations.scoverage {
+    resolutionStrategy.eachDependency {
+        if (requested.group == "org.scoverage" && requested.name.startsWith("scalac-scoverage-plugin_")) {
+            useTarget("${requested.group}:scalac-scoverage-plugin_2.13.16:2.3.0")
+        }
+    }
+}
+
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+    options.compilerArgs.add("-parameters")
+}
+
+tasks.withType<Jar>().configureEach {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+}
+
+tasks.test {
+    useJUnitPlatform {
+        includeEngines("scalatest", "junit-jupiter")
+        testLogging {
+            events("passed", "skipped", "failed")
+            showStandardStreams = true
+            exceptionFormat = org.gradle.api.tasks.testing.logging.TestExceptionFormat.FULL
+        }
+    }
+    finalizedBy(tasks.reportScoverage)
+}
+tasks.reportScoverage {
+    dependsOn(tasks.test)
+}
+
+tasks.jar {
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
+}

modules/tournament/src/main/resources/application.yml

@@ -0,0 +1,59 @@
+quarkus:
+  http:
+    port: 8088
+  application:
+    name: nowchess-tournament
+  redis:
+    hosts: redis://${REDIS_HOST:localhost}:${REDIS_PORT:6379}
+  rest-client:
+    core-service:
+      url: http://localhost:8080
+  datasource:
+    db-kind: h2
+    username: sa
+    password: ""
+    jdbc:
+      url: jdbc:h2:mem:nowchess-tournament;DB_CLOSE_DELAY=-1
+  hibernate-orm:
+    schema-management:
+      strategy: drop-and-create
+  smallrye-jwt:
+    enabled: true
+
+nowchess:
+  redis:
+    host: ${REDIS_HOST:localhost}
+    port: ${REDIS_PORT:6379}
+    prefix: ${REDIS_PREFIX:nowchess}
+  internal:
+    secret: ${INTERNAL_SECRET:123abc}
+
+mp:
+  jwt:
+    verify:
+      publickey:
+        location: keys/public.pem
+      issuer: nowchess
+
+"%deployed":
+  quarkus:
+    datasource:
+      db-kind: postgresql
+      username: ${DB_USER:nowchess}
+      password: ${DB_PASSWORD:nowchess}
+      jdbc:
+        url: ${DB_URL:jdbc:postgresql://localhost:5432/nowchess}
+    hibernate-orm:
+      schema-management:
+        strategy: update
+
+"%test":
+  quarkus:
+    datasource:
+      jdbc:
+        url: jdbc:h2:mem:nowchess-tournament;DB_CLOSE_DELAY=-1
+    hibernate-orm:
+      schema-management:
+        strategy: drop-and-create
+    arc:
+      exclude-types: de.nowchess.tournament.redis.GameResultStreamListener

modules/tournament/src/main/resources/keys/public.pem

@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxDsnsCAl0vQx7Vu9CLDZ
+g0SG05NgUzu9T+3DTEaHGq60T2uriO8BenwyvsF3BnDqTbKf4voohZ1DNfzdbT1J
+Fj8B62FrDmxcO+sp1/b5HUCJP6y2uSRCmzOHe5k7Pk1IEi72FgBpKXSRkFibRlVf
+634g7mgsPZAQ9PJEsv4Qvm05T9L6+Gmq6N3bMVLKRXs4RhDhaFbYH9GtUg1eI0yH
+YjGyRfqzW/nqVMstOLHt8CuPouq4p7eMzeDH3YHkxPm4GG5foCXMOd2DZrW0SCcr
+7dhFeNVWzQ2m53eOhBzNQX+v3pgjVStsePhBRt2LyGfwkNzmqDgqWsMzSHRMY+cn
+WQIDAQAB
+-----END PUBLIC KEY-----

modules/tournament/src/main/scala/de/nowchess/tournament/client/CoreGameClient.scala

@@ -0,0 +1,28 @@
+package de.nowchess.tournament.client
+
+import de.nowchess.security.{InternalClientHeadersFactory, InternalSecretClientFilter}
+import jakarta.ws.rs.*
+import jakarta.ws.rs.core.MediaType
+import org.eclipse.microprofile.rest.client.annotation.{RegisterClientHeaders, RegisterProvider}
+import org.eclipse.microprofile.rest.client.inject.RegisterRestClient
+
+case class CorePlayerInfo(id: String, displayName: String)
+case class CoreTimeControl(limitSeconds: Option[Int], incrementSeconds: Option[Int], daysPerMove: Option[Int])
+case class CoreCreateGameRequest(
+    white: Option[CorePlayerInfo],
+    black: Option[CorePlayerInfo],
+    timeControl: Option[CoreTimeControl],
+    mode: Option[String],
+)
+case class CoreGameResponse(gameId: String)
+
+@Path("/api/board/game")
+@RegisterRestClient(configKey = "core-service")
+@RegisterProvider(classOf[InternalSecretClientFilter])
+@RegisterClientHeaders(classOf[InternalClientHeadersFactory])
+trait CoreGameClient:
+
+  @POST
+  @Consumes(Array(MediaType.APPLICATION_JSON))
+  @Produces(Array(MediaType.APPLICATION_JSON))
+  def createGame(req: CoreCreateGameRequest): CoreGameResponse

modules/tournament/src/main/scala/de/nowchess/tournament/config/JacksonConfig.scala

@@ -0,0 +1,11 @@
+package de.nowchess.tournament.config
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.scala.DefaultScalaModule
+import io.quarkus.jackson.ObjectMapperCustomizer
+import jakarta.inject.Singleton
+
+@Singleton
+class JacksonConfig extends ObjectMapperCustomizer:
+  def customize(objectMapper: ObjectMapper): Unit =
+    objectMapper.registerModule(DefaultScalaModule)

modules/tournament/src/main/scala/de/nowchess/tournament/config/RedisConfig.scala

@@ -0,0 +1,12 @@
+package de.nowchess.tournament.config
+
+import jakarta.enterprise.context.ApplicationScoped
+import org.eclipse.microprofile.config.inject.ConfigProperty
+import scala.compiletime.uninitialized
+
+@ApplicationScoped
+class RedisConfig:
+  // scalafix:off DisableSyntax.var
+  @ConfigProperty(name = "nowchess.redis.prefix", defaultValue = "nowchess")
+  var prefix: String = uninitialized
+  // scalafix:on DisableSyntax.var

modules/tournament/src/main/scala/de/nowchess/tournament/domain/Tournament.scala

@@ -0,0 +1,33 @@
+package de.nowchess.tournament.domain
+
+import jakarta.persistence.*
+import scala.compiletime.uninitialized
+import java.time.Instant
+
+@Entity
+@Table(name = "tournaments")
+class Tournament:
+  // scalafix:off DisableSyntax.var
+  @Id
+  var id: String = uninitialized
+
+  @Column(nullable = false)
+  var fullName: String = uninitialized
+
+  var nbRounds: Int = 0
+  var clockLimit: Int = 0
+  var clockIncrement: Int = 0
+  var rated: Boolean = true
+
+  @Column(nullable = false)
+  var status: String = "created"
+
+  var currentRound: Int = 0
+
+  @Column(nullable = false)
+  var createdBy: String = uninitialized
+
+  var startsAt: Instant = uninitialized
+  var winnerId: String = uninitialized
+  var winnerName: String = uninitialized
+  // scalafix:on

modules/tournament/src/main/scala/de/nowchess/tournament/domain/TournamentPairing.scala

@@ -0,0 +1,31 @@
+package de.nowchess.tournament.domain
+
+import jakarta.persistence.*
+import scala.compiletime.uninitialized
+import java.util.UUID
+
+@Entity
+@Table(name = "tournament_pairings")
+class TournamentPairing:
+  // scalafix:off DisableSyntax.var
+  @Id
+  @GeneratedValue(strategy = GenerationType.UUID)
+  var id: UUID = uninitialized
+
+  @Column(nullable = false)
+  var tournamentId: String = uninitialized
+
+  var round: Int = 0
+  var whiteId: String = uninitialized
+  var whiteName: String = uninitialized
+
+  @Column(nullable = false)
+  var blackId: String = uninitialized
+
+  @Column(nullable = false)
+  var blackName: String = uninitialized
+
+  var gameId: String = uninitialized
+  var winner: String = uninitialized
+  var moveList: String = uninitialized
+  // scalafix:on

modules/tournament/src/main/scala/de/nowchess/tournament/domain/TournamentParticipant.scala

@@ -0,0 +1,31 @@
+package de.nowchess.tournament.domain
+
+import jakarta.persistence.*
+import scala.compiletime.uninitialized
+import java.util.UUID
+
+@Entity
+@Table(name = "tournament_participants")
+class TournamentParticipant:
+  // scalafix:off DisableSyntax.var
+  @Id
+  @GeneratedValue(strategy = GenerationType.UUID)
+  var id: UUID = uninitialized
+
+  @Column(nullable = false)
+  var tournamentId: String = uninitialized
+
+  @Column(nullable = false)
+  var botId: String = uninitialized
+
+  @Column(nullable = false)
+  var botName: String = uninitialized
+
+  var points: Double = 0.0
+  var tieBreak: Double = 0.0
+  var nbGames: Int = 0
+  var wins: Int = 0
+  var draws: Int = 0
+  var losses: Int = 0
+  var byeCount: Int = 0
+  // scalafix:on

modules/tournament/src/main/scala/de/nowchess/tournament/dto/Dtos.scala

@@ -0,0 +1,74 @@
+package de.nowchess.tournament.dto
+
+case class BotRef(id: String, name: String)
+
+case class Clock(limit: Int, increment: Int)
+
+case class Variant(key: String, name: String)
+
+case class CreateTournamentForm(
+    name: String,
+    nbRounds: Int,
+    clockLimit: Int,
+    clockIncrement: Int,
+    rated: Boolean = true,
+)
+
+case class ResultDto(
+    rank: Int,
+    points: Double,
+    tieBreak: Double,
+    bot: BotRef,
+    nbGames: Int,
+    wins: Int,
+    draws: Int,
+    losses: Int,
+)
+
+case class Standing(page: Int, players: List[ResultDto])
+
+case class TournamentDto(
+    id: String,
+    fullName: String,
+    clock: Clock,
+    variant: Variant,
+    rated: Boolean,
+    nbPlayers: Int,
+    nbRounds: Int,
+    createdBy: String,
+    startsAt: Option[String],
+    status: String,
+    round: Int,
+    standing: Standing,
+    winner: Option[BotRef],
+)
+
+case class TournamentListDto(
+    created: List[TournamentDto],
+    started: List[TournamentDto],
+    finished: List[TournamentDto],
+)
+
+case class PairingDto(
+    id: String,
+    round: Int,
+    white: Option[BotRef],
+    black: BotRef,
+    gameId: Option[String],
+    winner: Option[String],
+)
+
+case class GameExportDto(
+    id: String,
+    round: Int,
+    white: BotRef,
+    black: BotRef,
+    winner: Option[String],
+    moves: String,
+)
+
+case class RoundPairingsDto(round: Int, pairings: List[PairingDto])
+
+case class ErrorDto(error: String)
+
+case class OkDto(ok: Boolean = true)

modules/tournament/src/main/scala/de/nowchess/tournament/error/TournamentError.scala

@@ -0,0 +1,10 @@
+package de.nowchess.tournament.error
+
+enum TournamentError(val message: String):
+  case NotFound(id: String)         extends TournamentError(s"Tournament $id not found")
+  case NotDirector                  extends TournamentError("Not the tournament director")
+  case WrongStatus(expected: String) extends TournamentError(s"Tournament must be in $expected status")
+  case AlreadyJoined                extends TournamentError("Already joined this tournament")
+  case NotJoined                    extends TournamentError("Not joined this tournament")
+  case NotEnoughParticipants        extends TournamentError("Need at least 2 participants to start")
+  case NotABot                      extends TournamentError("Only bot accounts can join tournaments")

modules/tournament/src/main/scala/de/nowchess/tournament/redis/GameResultStreamListener.scala

@@ -0,0 +1,82 @@
+package de.nowchess.tournament.redis
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import de.nowchess.api.dto.GameWritebackEventDto
+import de.nowchess.tournament.config.RedisConfig
+import de.nowchess.tournament.service.TournamentService
+import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.{StreamMessage, XGroupCreateArgs, XReadGroupArgs}
+import io.quarkus.runtime.Startup
+import jakarta.annotation.PostConstruct
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import org.eclipse.microprofile.context.ManagedExecutor
+import org.jboss.logging.Logger
+import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+import scala.util.{Failure, Success, Try}
+import java.util.UUID
+
+@Startup
+@ApplicationScoped
+class GameResultStreamListener:
+  // scalafix:off DisableSyntax.var
+  @Inject var redis: RedisDataSource                         = uninitialized
+  @Inject var objectMapper: ObjectMapper                     = uninitialized
+  @Inject var tournamentService: TournamentService           = uninitialized
+  @Inject var executor: ManagedExecutor                      = uninitialized
+  @Inject var redisConfig: RedisConfig                       = uninitialized
+  // scalafix:on
+
+  private val log        = Logger.getLogger(classOf[GameResultStreamListener])
+  private val groupName  = "tournament-result"
+  private val consumerId = UUID.randomUUID().toString
+
+  private def streamKey = s"${redisConfig.prefix}:game-writeback"
+
+  @PostConstruct
+  def startListening(): Unit =
+    createGroupIfAbsent()
+    executor.submit(new Runnable:
+      def run(): Unit = pollLoop()
+    )
+    log.infof("Tournament result listener started (consumer=%s)", consumerId)
+
+  private def createGroupIfAbsent(): Unit =
+    Try(redis.stream(classOf[String]).xgroupCreate(streamKey, groupName, "0", new XGroupCreateArgs().mkstream())) match
+      case Failure(ex) if Option(ex.getMessage).exists(_.contains("BUSYGROUP")) => ()
+      case Failure(ex) => log.warnf(ex, "Failed to create consumer group")
+      case Success(_)  => ()
+
+  private def pollLoop(): Unit =
+    while true do
+      Try {
+        val messages = redis.stream(classOf[String]).xreadgroup(
+          groupName,
+          consumerId,
+          streamKey,
+          ">",
+          new XReadGroupArgs().count(10).block(java.time.Duration.ofSeconds(2)),
+        )
+        if messages != null then messages.forEach(msg => handleMessage(msg))
+      } match
+        case Failure(ex) => log.warnf(ex, "Error in result poll loop")
+        case Success(_)  => ()
+
+  private def handleMessage(msg: StreamMessage[String, String, String]): Unit =
+    val json = msg.payload().get("data")
+    Try(objectMapper.readValue(json, classOf[GameWritebackEventDto])) match
+      case Failure(ex) =>
+        log.errorf(ex, "Unparseable game result event: %s", json)
+        ack(msg.id())
+      case Success(event) =>
+        if event.result.isDefined then
+          Try(tournamentService.handleGameResult(event.gameId, event.result.get, event.pgn)) match
+            case Failure(ex) => log.errorf(ex, "Failed to handle game result for %s", event.gameId)
+            case Success(_)  => ()
+        ack(msg.id())
+
+  private def ack(id: String): Unit =
+    Try(redis.stream(classOf[String]).xack(streamKey, groupName, id)) match
+      case Failure(ex) => log.warnf(ex, "Failed to ack message %s", id)
+      case Success(_)  => ()

modules/tournament/src/main/scala/de/nowchess/tournament/repository/PairingRepository.scala

@@ -0,0 +1,47 @@
+package de.nowchess.tournament.repository
+
+import de.nowchess.tournament.domain.TournamentPairing
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.persistence.EntityManager
+import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+import java.util.UUID
+
+@ApplicationScoped
+class PairingRepository:
+
+  @Inject
+  // scalafix:off DisableSyntax.var
+  var em: EntityManager = uninitialized
+  // scalafix:on
+
+  def findByTournamentId(tournamentId: String): List[TournamentPairing] =
+    em.createQuery("FROM TournamentPairing WHERE tournamentId = :tid", classOf[TournamentPairing])
+      .setParameter("tid", tournamentId)
+      .getResultList
+      .asScala
+      .toList
+
+  def findByTournamentIdAndRound(tournamentId: String, round: Int): List[TournamentPairing] =
+    em.createQuery(
+      "FROM TournamentPairing WHERE tournamentId = :tid AND round = :round",
+      classOf[TournamentPairing],
+    ).setParameter("tid", tournamentId)
+      .setParameter("round", round)
+      .getResultList
+      .asScala
+      .toList
+
+  def findByGameId(gameId: String): Option[TournamentPairing] =
+    em.createQuery("FROM TournamentPairing WHERE gameId = :gid", classOf[TournamentPairing])
+      .setParameter("gid", gameId)
+      .getResultList
+      .asScala
+      .headOption
+
+  def persist(p: TournamentPairing): TournamentPairing =
+    if p.id == null then
+      em.persist(p)
+      p
+    else em.merge(p)

modules/tournament/src/main/scala/de/nowchess/tournament/repository/ParticipantRepository.scala

@@ -0,0 +1,43 @@
+package de.nowchess.tournament.repository
+
+import de.nowchess.tournament.domain.TournamentParticipant
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.persistence.EntityManager
+import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+import java.util.UUID
+
+@ApplicationScoped
+class ParticipantRepository:
+
+  @Inject
+  // scalafix:off DisableSyntax.var
+  var em: EntityManager = uninitialized
+  // scalafix:on
+
+  def findByTournamentId(tournamentId: String): List[TournamentParticipant] =
+    em.createQuery("FROM TournamentParticipant WHERE tournamentId = :tid", classOf[TournamentParticipant])
+      .setParameter("tid", tournamentId)
+      .getResultList
+      .asScala
+      .toList
+
+  def findByTournamentIdAndBotId(tournamentId: String, botId: String): Option[TournamentParticipant] =
+    em.createQuery(
+      "FROM TournamentParticipant WHERE tournamentId = :tid AND botId = :bid",
+      classOf[TournamentParticipant],
+    ).setParameter("tid", tournamentId)
+      .setParameter("bid", botId)
+      .getResultList
+      .asScala
+      .headOption
+
+  def persist(p: TournamentParticipant): TournamentParticipant =
+    if p.id == null then
+      em.persist(p)
+      p
+    else em.merge(p)
+
+  def delete(p: TournamentParticipant): Unit =
+    em.remove(if em.contains(p) then p else em.merge(p))

modules/tournament/src/main/scala/de/nowchess/tournament/repository/TournamentRepository.scala

@@ -0,0 +1,33 @@
+package de.nowchess.tournament.repository
+
+import de.nowchess.tournament.domain.Tournament
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.persistence.EntityManager
+import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+
+@ApplicationScoped
+class TournamentRepository:
+
+  @Inject
+  // scalafix:off DisableSyntax.var
+  var em: EntityManager = uninitialized
+  // scalafix:on
+
+  def findOptById(id: String): Option[Tournament] =
+    Option(em.find(classOf[Tournament], id))
+
+  def findByStatus(status: String): List[Tournament] =
+    em.createQuery("FROM Tournament WHERE status = :status", classOf[Tournament])
+      .setParameter("status", status)
+      .getResultList
+      .asScala
+      .toList
+
+  def persist(t: Tournament): Tournament =
+    if em.contains(t) then t else em.merge(t)
+
+  def delete(t: Tournament): Unit =
+    val managed = if em.contains(t) then t else em.merge(t)
+    em.remove(managed)

modules/tournament/src/main/scala/de/nowchess/tournament/resource/TournamentResource.scala

@@ -0,0 +1,184 @@
+package de.nowchess.tournament.resource
+
+import de.nowchess.tournament.dto.*
+import de.nowchess.tournament.error.TournamentError
+import de.nowchess.tournament.service.{TournamentService, TournamentStreamManager}
+import io.smallrye.mutiny.Multi
+import jakarta.annotation.security.{PermitAll, RolesAllowed}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.ws.rs.*
+import jakarta.ws.rs.core.{Context, HttpHeaders, MediaType, Response}
+import org.eclipse.microprofile.jwt.JsonWebToken
+import org.jboss.logging.Logger
+import scala.compiletime.uninitialized
+
+@Path("/api/tournament")
+@ApplicationScoped
+@Produces(Array(MediaType.APPLICATION_JSON))
+@Consumes(Array(MediaType.APPLICATION_JSON))
+class TournamentResource:
+
+  private val log = Logger.getLogger(classOf[TournamentResource])
+
+  // scalafix:off DisableSyntax.var
+  @Inject var tournamentService: TournamentService   = uninitialized
+  @Inject var streamManager: TournamentStreamManager = uninitialized
+  @Inject var jwt: JsonWebToken                      = uninitialized
+  // scalafix:on
+
+  @GET
+  @PermitAll
+  def list(): Response =
+    val (created, started, finished) = tournamentService.list()
+    val dto = TournamentListDto(
+      created = created.map(t => tournamentService.toDto(t)),
+      started = started.map(t => tournamentService.toDto(t)),
+      finished = finished.map(t => tournamentService.toDto(t)),
+    )
+    Response.ok(dto).build()
+
+  @POST
+  @RolesAllowed(Array("**"))
+  @Consumes(Array(MediaType.APPLICATION_FORM_URLENCODED))
+  def create(
+      @FormParam("name") name: String,
+      @FormParam("nbRounds") nbRounds: Int,
+      @FormParam("clockLimit") clockLimit: Int,
+      @FormParam("clockIncrement") clockIncrement: Int,
+      @FormParam("rated") @DefaultValue("true") rated: Boolean,
+  ): Response =
+    val userId = Option(jwt.getSubject).getOrElse("")
+    val form   = CreateTournamentForm(name, nbRounds, clockLimit, clockIncrement, rated)
+    val t      = tournamentService.create(userId, form)
+    Response.status(Response.Status.CREATED).entity(tournamentService.toDto(t)).build()
+
+  @GET
+  @Path("/{id}")
+  @PermitAll
+  def get(@PathParam("id") id: String): Response =
+    tournamentService.get(id) match
+      case None => Response.status(Response.Status.NOT_FOUND).entity(ErrorDto(s"Tournament $id not found")).build()
+      case Some(t) =>
+        val standings = tournamentService.getStandings(id)
+        Response.ok(tournamentService.toDto(t, standings)).build()
+
+  @DELETE
+  @Path("/{id}")
+  @RolesAllowed(Array("**"))
+  def terminate(@PathParam("id") id: String): Response =
+    val userId = Option(jwt.getSubject).getOrElse("")
+    tournamentService.terminate(id, userId) match
+      case Right(_)    => Response.noContent().build()
+      case Left(error) => errorResponse(error)
+
+  @POST
+  @Path("/{id}/start")
+  @RolesAllowed(Array("**"))
+  def start(@PathParam("id") id: String): Response =
+    val userId = Option(jwt.getSubject).getOrElse("")
+    tournamentService.start(id, userId) match
+      case Right(t)    => Response.ok(tournamentService.toDto(t)).build()
+      case Left(error) => errorResponse(error)
+
+  @POST
+  @Path("/{id}/join")
+  @RolesAllowed(Array("**"))
+  def join(@PathParam("id") id: String): Response =
+    val tokenType = Option(jwt.getClaim[AnyRef]("type")).map(_.toString).getOrElse("")
+    if tokenType != "bot" then
+      Response.status(Response.Status.FORBIDDEN).entity(ErrorDto("Only bots can join tournaments")).build()
+    else
+      val botId   = Option(jwt.getSubject).getOrElse("")
+      val botName = Option(jwt.getClaim[AnyRef]("name")).map(_.toString).getOrElse(botId)
+      tournamentService.join(id, botId, botName) match
+        case Right(_)    => Response.ok(OkDto()).build()
+        case Left(error) => errorResponse(error)
+
+  @POST
+  @Path("/{id}/withdraw")
+  @RolesAllowed(Array("**"))
+  def withdraw(@PathParam("id") id: String): Response =
+    val tokenType = Option(jwt.getClaim[AnyRef]("type")).map(_.toString).getOrElse("")
+    if tokenType != "bot" then
+      Response.status(Response.Status.FORBIDDEN).entity(ErrorDto("Only bots can withdraw")).build()
+    else
+      val botId = Option(jwt.getSubject).getOrElse("")
+      tournamentService.withdraw(id, botId) match
+        case Right(_)    => Response.ok(OkDto()).build()
+        case Left(error) => errorResponse(error)
+
+  @GET
+  @Path("/{id}/results")
+  @Produces(Array("application/x-ndjson"))
+  @PermitAll
+  def results(
+      @PathParam("id") id: String,
+      @QueryParam("nb") @DefaultValue("100") nb: Int,
+  ): Response =
+    tournamentService.get(id) match
+      case None => Response.status(Response.Status.NOT_FOUND).entity("").build()
+      case Some(_) =>
+        val ndjson = tournamentService.getResults(id).take(nb).map { r =>
+          s"""{"rank":${r.rank},"points":${r.points},"tieBreak":${r.tieBreak},"bot":{"id":"${r.bot.id}","name":"${r.bot.name}"},"nbGames":${r.nbGames},"wins":${r.wins},"draws":${r.draws},"losses":${r.losses}}"""
+        }.mkString("\n")
+        Response.ok(ndjson).`type`("application/x-ndjson").build()
+
+  @GET
+  @Path("/{id}/round/{round}")
+  @PermitAll
+  def roundPairings(@PathParam("id") id: String, @PathParam("round") round: Int): Response =
+    tournamentService.get(id) match
+      case None => Response.status(Response.Status.NOT_FOUND).entity(ErrorDto(s"Tournament $id not found")).build()
+      case Some(_) =>
+        val pairings = tournamentService.getPairings(id, round)
+        Response.ok(RoundPairingsDto(round, pairings)).build()
+
+  @GET
+  @Path("/{id}/export/games")
+  @PermitAll
+  @Produces(Array(MediaType.APPLICATION_JSON, MediaType.WILDCARD, "application/x-ndjson", "application/x-chess-pgn"))
+  def exportGames(@PathParam("id") id: String, @Context headers: HttpHeaders): Response =
+    tournamentService.get(id) match
+      case None => Response.status(Response.Status.NOT_FOUND).entity(ErrorDto(s"Tournament $id not found")).build()
+      case Some(_) =>
+        val acceptHeader = Option(headers.getHeaderString("Accept")).getOrElse("")
+        val pairings     = tournamentService.getAllPairings(id)
+        if acceptHeader.contains("application/x-ndjson") then
+          val ndjson = pairings
+            .filter(p => Option(p.whiteId).isDefined && Option(p.gameId).isDefined)
+            .map { p =>
+              val winner = Option(p.winner).map(w => s""""$w"""").getOrElse("null")
+              val moves  = Option(p.moveList).getOrElse("")
+              s"""{"id":"${p.gameId}","round":${p.round},"white":{"id":"${p.whiteId}","name":"${p.whiteName}"},"black":{"id":"${p.blackId}","name":"${p.blackName}"},"winner":$winner,"moves":"$moves"}"""
+            }
+            .mkString("\n")
+          Response.ok(ndjson).`type`("application/x-ndjson").build()
+        else
+          val pgn = pairings.flatMap(p => Option(p.moveList)).mkString("\n\n")
+          Response.ok(pgn).`type`("application/x-chess-pgn").build()
+
+  @GET
+  @Path("/{id}/stream")
+  @RolesAllowed(Array("**"))
+  @Produces(Array("application/x-ndjson"))
+  def stream(@PathParam("id") id: String): Multi[String] =
+    tournamentService.get(id) match
+      case None => Multi.createFrom().failure(new NotFoundException(s"Tournament $id not found"))
+      case Some(_) =>
+        val botId = Option(jwt.getSubject).getOrElse("")
+        Multi.createFrom().emitter[String] { emitter =>
+          streamManager.register(id, botId, emitter)
+          emitter.onTermination(() => streamManager.unregister(id, botId, emitter))
+        }
+
+  private def errorResponse(error: TournamentError): Response =
+    val status = error match
+      case TournamentError.NotFound(_)           => Response.Status.NOT_FOUND
+      case TournamentError.NotDirector           => Response.Status.FORBIDDEN
+      case TournamentError.NotABot               => Response.Status.FORBIDDEN
+      case TournamentError.WrongStatus(_)        => Response.Status.CONFLICT
+      case TournamentError.AlreadyJoined         => Response.Status.CONFLICT
+      case TournamentError.NotJoined             => Response.Status.CONFLICT
+      case TournamentError.NotEnoughParticipants => Response.Status.CONFLICT
+    Response.status(status).entity(ErrorDto(error.message)).build()

modules/tournament/src/main/scala/de/nowchess/tournament/service/SwissPairingService.scala

@@ -0,0 +1,68 @@
+package de.nowchess.tournament.service
+
+import de.nowchess.tournament.domain.{TournamentParticipant, TournamentPairing}
+import java.util.concurrent.ThreadLocalRandom
+
+object SwissPairingService:
+
+  def computePairings(
+      participants: List[TournamentParticipant],
+      pastPairings: List[TournamentPairing],
+  ): (List[(TournamentParticipant, TournamentParticipant)], Option[TournamentParticipant]) =
+    val sorted = sortParticipants(participants)
+    val (remaining, byeOpt) = extractByePlayer(sorted)
+    val pairs = buildPairs(remaining, pastPairings)
+    (pairs, byeOpt)
+
+  private def sortParticipants(participants: List[TournamentParticipant]): List[TournamentParticipant] =
+    participants.sortWith { (a, b) =>
+      if a.points != b.points then a.points > b.points
+      else if a.tieBreak != b.tieBreak then a.tieBreak > b.tieBreak
+      else a.botName < b.botName
+    }
+
+  private def extractByePlayer(
+      sorted: List[TournamentParticipant],
+  ): (List[TournamentParticipant], Option[TournamentParticipant]) =
+    if sorted.size % 2 == 0 then (sorted, None)
+    else
+      val minByes  = sorted.map(_.byeCount).min
+      val byeIndex = sorted.lastIndexWhere(_.byeCount == minByes)
+      val bye      = sorted(byeIndex)
+      (sorted.filterNot(_ eq bye), Some(bye))
+
+  private def buildPairs(
+      players: List[TournamentParticipant],
+      pastPairings: List[TournamentPairing],
+  ): List[(TournamentParticipant, TournamentParticipant)] =
+    val arr = players.toArray
+    resolveConflicts(arr, pastPairings)
+    arr.grouped(2).flatMap {
+      case Array(a, b) => Some(assignColors(a, b))
+      case _           => None
+    }.toList
+
+  private def resolveConflicts(arr: Array[TournamentParticipant], pastPairings: List[TournamentPairing]): Unit =
+    var i = 0
+    while i < arr.length - 1 do
+      if havePlayedBefore(arr(i), arr(i + 1), pastPairings) && i + 2 < arr.length then
+        val tmp    = arr(i + 1)
+        arr(i + 1) = arr(i + 2)
+        arr(i + 2) = tmp
+      i += 2
+
+  private def havePlayedBefore(
+      a: TournamentParticipant,
+      b: TournamentParticipant,
+      pastPairings: List[TournamentPairing],
+  ): Boolean =
+    pastPairings.exists(p =>
+      (p.whiteId == a.botId && p.blackId == b.botId) ||
+        (p.whiteId == b.botId && p.blackId == a.botId),
+    )
+
+  private def assignColors(
+      a: TournamentParticipant,
+      b: TournamentParticipant,
+  ): (TournamentParticipant, TournamentParticipant) =
+    if ThreadLocalRandom.current().nextBoolean() then (a, b) else (b, a)

modules/tournament/src/main/scala/de/nowchess/tournament/service/TournamentService.scala

@@ -0,0 +1,284 @@
+package de.nowchess.tournament.service
+
+import de.nowchess.tournament.client.{CoreCreateGameRequest, CoreGameClient, CorePlayerInfo, CoreTimeControl}
+import de.nowchess.tournament.domain.{Tournament, TournamentPairing, TournamentParticipant}
+import de.nowchess.tournament.dto.{BotRef, Clock, CreateTournamentForm, PairingDto, ResultDto, Standing, TournamentDto, Variant}
+import de.nowchess.tournament.error.TournamentError
+import de.nowchess.tournament.repository.{PairingRepository, ParticipantRepository, TournamentRepository}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import jakarta.transaction.Transactional
+import org.eclipse.microprofile.rest.client.inject.RestClient
+import org.jboss.logging.Logger
+import scala.compiletime.uninitialized
+import scala.util.{Failure, Success, Try}
+import java.time.Instant
+
+@ApplicationScoped
+class TournamentService:
+
+  private val log = Logger.getLogger(classOf[TournamentService])
+
+  // scalafix:off DisableSyntax.var
+  @Inject var tournamentRepository: TournamentRepository   = uninitialized
+  @Inject var participantRepository: ParticipantRepository = uninitialized
+  @Inject var pairingRepository: PairingRepository         = uninitialized
+  @Inject var streamManager: TournamentStreamManager       = uninitialized
+
+  @Inject
+  @RestClient
+  var coreGameClient: CoreGameClient = uninitialized
+  // scalafix:on
+
+  @Transactional
+  def create(createdBy: String, form: CreateTournamentForm): Tournament =
+    val t = new Tournament()
+    t.id = scala.util.Random.alphanumeric.take(6).mkString
+    t.fullName = form.name
+    t.nbRounds = form.nbRounds
+    t.clockLimit = form.clockLimit
+    t.clockIncrement = form.clockIncrement
+    t.rated = form.rated
+    t.status = "created"
+    t.currentRound = 0
+    t.createdBy = createdBy
+    tournamentRepository.persist(t)
+    t
+
+  def get(id: String): Option[Tournament] =
+    tournamentRepository.findOptById(id)
+
+  def list(): (List[Tournament], List[Tournament], List[Tournament]) =
+    (
+      tournamentRepository.findByStatus("created"),
+      tournamentRepository.findByStatus("started"),
+      tournamentRepository.findByStatus("finished"),
+    )
+
+  @Transactional
+  def terminate(id: String, userId: String): Either[TournamentError, Unit] =
+    for
+      t <- tournamentRepository.findOptById(id).toRight(TournamentError.NotFound(id))
+      _ <- Either.cond(t.createdBy == userId, (), TournamentError.NotDirector)
+      _ <- Either.cond(t.status == "created", (), TournamentError.WrongStatus("created"))
+    yield
+      tournamentRepository.delete(t)
+
+  @Transactional
+  def join(id: String, botId: String, botName: String): Either[TournamentError, Unit] =
+    for
+      t <- tournamentRepository.findOptById(id).toRight(TournamentError.NotFound(id))
+      _ <- Either.cond(t.status == "created", (), TournamentError.WrongStatus("created"))
+      _ <- Either.cond(
+        participantRepository.findByTournamentIdAndBotId(id, botId).isEmpty,
+        (),
+        TournamentError.AlreadyJoined,
+      )
+    yield
+      val p = new TournamentParticipant()
+      p.tournamentId = id
+      p.botId = botId
+      p.botName = botName
+      participantRepository.persist(p)
+
+  @Transactional
+  def withdraw(id: String, botId: String): Either[TournamentError, Unit] =
+    for
+      t <- tournamentRepository.findOptById(id).toRight(TournamentError.NotFound(id))
+      _ <- Either.cond(t.status == "created", (), TournamentError.WrongStatus("created"))
+      p <- participantRepository.findByTournamentIdAndBotId(id, botId).toRight(TournamentError.NotJoined)
+    yield participantRepository.delete(p)
+
+  @Transactional
+  def start(id: String, userId: String): Either[TournamentError, Tournament] =
+    for
+      t            <- tournamentRepository.findOptById(id).toRight(TournamentError.NotFound(id))
+      _            <- Either.cond(t.createdBy == userId, (), TournamentError.NotDirector)
+      _            <- Either.cond(t.status == "created", (), TournamentError.WrongStatus("created"))
+      participants <- validateMinParticipants(id)
+    yield
+      t.status = "started"
+      t.currentRound = 1
+      t.startsAt = Instant.now()
+      tournamentRepository.persist(t)
+      streamManager.publish(t.id, """{"type":"tournamentStarted"}""")
+      startRound(t, 1, participants)
+      t
+
+  private def validateMinParticipants(id: String): Either[TournamentError, List[TournamentParticipant]] =
+    val ps = participantRepository.findByTournamentId(id)
+    Either.cond(ps.size >= 2, ps, TournamentError.NotEnoughParticipants)
+
+  private def startRound(t: Tournament, round: Int, participants: List[TournamentParticipant]): Unit =
+    val pastPairings = pairingRepository.findByTournamentId(t.id)
+    val (pairs, byeOpt) = SwissPairingService.computePairings(participants, pastPairings)
+    byeOpt.foreach(bye => createByePairing(t.id, round, bye))
+    pairs.foreach { case (white, black) => createRealPairing(t.id, round, white, black, t) }
+    streamManager.publish(t.id, s"""{"type":"roundStarted","round":$round}""")
+
+  private def createByePairing(tournamentId: String, round: Int, bye: TournamentParticipant): Unit =
+    val pairing = new TournamentPairing()
+    pairing.tournamentId = tournamentId
+    pairing.round = round
+    pairing.blackId = bye.botId
+    pairing.blackName = bye.botName
+    pairing.winner = "bye"
+    pairingRepository.persist(pairing)
+    bye.points += 0.5
+    bye.byeCount += 1
+    participantRepository.persist(bye)
+
+  private def createRealPairing(
+      tournamentId: String,
+      round: Int,
+      white: TournamentParticipant,
+      black: TournamentParticipant,
+      t: Tournament,
+  ): Unit =
+    val tc = CoreTimeControl(Some(t.clockLimit), Some(t.clockIncrement), None)
+    val req = CoreCreateGameRequest(
+      Some(CorePlayerInfo(white.botId, white.botName)),
+      Some(CorePlayerInfo(black.botId, black.botName)),
+      Some(tc),
+      if t.rated then Some("Rated") else Some("Casual"),
+    )
+    Try(coreGameClient.createGame(req)) match
+      case Failure(ex) => log.errorf(ex, "Failed to create game for round %d in tournament %s", round, tournamentId)
+      case Success(resp) =>
+        val pairing = new TournamentPairing()
+        pairing.tournamentId = tournamentId
+        pairing.round = round
+        pairing.whiteId = white.botId
+        pairing.whiteName = white.botName
+        pairing.blackId = black.botId
+        pairing.blackName = black.botName
+        pairing.gameId = resp.gameId
+        pairingRepository.persist(pairing)
+        streamManager.publishToBot(tournamentId, white.botId, s"""{"type":"gameStart","round":$round,"gameId":"${resp.gameId}","color":"white"}""")
+        streamManager.publishToBot(tournamentId, black.botId, s"""{"type":"gameStart","round":$round,"gameId":"${resp.gameId}","color":"black"}""")
+
+  @Transactional
+  def handleGameResult(gameId: String, result: String, pgn: String): Unit =
+    pairingRepository.findByGameId(gameId).foreach { pairing =>
+      val (winnerStr, wPts, bPts) = parseResult(result)
+      pairing.winner = winnerStr
+      pairing.moveList = pgn
+      pairingRepository.persist(pairing)
+      updateParticipantStats(pairing, wPts, bPts)
+      checkRoundCompletion(pairing.tournamentId)
+    }
+
+  private def parseResult(result: String): (String, Double, Double) = result match
+    case "1-0"     => ("white", 1.0, 0.0)
+    case "0-1"     => ("black", 0.0, 1.0)
+    case "1/2-1/2" => ("draw", 0.5, 0.5)
+    case _         => ("draw", 0.5, 0.5)
+
+  private def updateParticipantStats(pairing: TournamentPairing, wPts: Double, bPts: Double): Unit =
+    Option(pairing.whiteId).foreach { wId =>
+      participantRepository.findByTournamentIdAndBotId(pairing.tournamentId, wId).foreach { p =>
+        p.points += wPts
+        p.nbGames += 1
+        if wPts == 1.0 then p.wins += 1 else if wPts == 0.5 then p.draws += 1 else p.losses += 1
+        participantRepository.persist(p)
+      }
+    }
+    participantRepository.findByTournamentIdAndBotId(pairing.tournamentId, pairing.blackId).foreach { p =>
+      p.points += bPts
+      p.nbGames += 1
+      if bPts == 1.0 then p.wins += 1 else if bPts == 0.5 then p.draws += 1 else p.losses += 1
+      participantRepository.persist(p)
+    }
+
+  private def checkRoundCompletion(tournamentId: String): Unit =
+    tournamentRepository.findOptById(tournamentId).foreach { t =>
+      val roundPairings = pairingRepository.findByTournamentIdAndRound(tournamentId, t.currentRound)
+      val allDone = roundPairings.nonEmpty && roundPairings.forall(p => Option(p.winner).isDefined)
+      if allDone then onRoundComplete(t)
+    }
+
+  private def onRoundComplete(t: Tournament): Unit =
+    streamManager.publish(t.id, s"""{"type":"roundFinished","round":${t.currentRound}}""")
+    recomputeBuchholz(t.id)
+    if t.currentRound >= t.nbRounds then finishTournament(t)
+    else
+      t.currentRound += 1
+      tournamentRepository.persist(t)
+      val participants = participantRepository.findByTournamentId(t.id)
+      startRound(t, t.currentRound, participants)
+
+  private def finishTournament(t: Tournament): Unit =
+    val participants = sortedStandings(participantRepository.findByTournamentId(t.id))
+    participants.headOption.foreach { winner =>
+      t.winnerId = winner.botId
+      t.winnerName = winner.botName
+    }
+    t.status = "finished"
+    tournamentRepository.persist(t)
+    val winnerInfo = participants.headOption
+      .map(w => s"""{"id":"${w.botId}","name":"${w.botName}"}""")
+      .getOrElse("null")
+    streamManager.publish(t.id, s"""{"type":"tournamentFinished","winner":$winnerInfo}""")
+
+  private def recomputeBuchholz(tournamentId: String): Unit =
+    val participants = participantRepository.findByTournamentId(tournamentId)
+    val pairings     = pairingRepository.findByTournamentId(tournamentId)
+    val pointsById   = participants.map(p => p.botId -> p.points).toMap
+    participants.foreach { p =>
+      val opponentIds = pairings.flatMap(pair =>
+        if pair.whiteId == p.botId then Some(pair.blackId)
+        else if pair.blackId == p.botId && Option(pair.whiteId).isDefined then Some(pair.whiteId)
+        else None,
+      )
+      p.tieBreak = opponentIds.flatMap(id => pointsById.get(id)).sum
+      participantRepository.persist(p)
+    }
+
+  def getStandings(tournamentId: String): List[ResultDto] =
+    val participants = sortedStandings(participantRepository.findByTournamentId(tournamentId))
+    participants.zipWithIndex.map { case (p, idx) =>
+      ResultDto(idx + 1, p.points, p.tieBreak, BotRef(p.botId, p.botName), p.nbGames, p.wins, p.draws, p.losses)
+    }
+
+  def getPairings(tournamentId: String, round: Int): List[PairingDto] =
+    pairingRepository.findByTournamentIdAndRound(tournamentId, round).map(toPairingDto)
+
+  def getAllPairings(tournamentId: String): List[TournamentPairing] =
+    pairingRepository.findByTournamentId(tournamentId)
+
+  def getResults(tournamentId: String): List[ResultDto] = getStandings(tournamentId)
+
+  def toDto(t: Tournament, standings: List[ResultDto] = Nil): TournamentDto =
+    val participants = participantRepository.findByTournamentId(t.id)
+    TournamentDto(
+      id = t.id,
+      fullName = t.fullName,
+      clock = Clock(t.clockLimit, t.clockIncrement),
+      variant = Variant("standard", "Standard"),
+      rated = t.rated,
+      nbPlayers = participants.size,
+      nbRounds = t.nbRounds,
+      createdBy = t.createdBy,
+      startsAt = Option(t.startsAt).map(_.toString),
+      status = t.status,
+      round = t.currentRound,
+      standing = Standing(1, standings),
+      winner = if t.winnerId != null then Some(BotRef(t.winnerId, t.winnerName)) else None,
+    )
+
+  private def toPairingDto(p: TournamentPairing): PairingDto =
+    PairingDto(
+      id = p.id.toString,
+      round = p.round,
+      white = Option(p.whiteId).map(id => BotRef(id, p.whiteName)),
+      black = BotRef(p.blackId, p.blackName),
+      gameId = Option(p.gameId),
+      winner = Option(p.winner),
+    )
+
+  private def sortedStandings(participants: List[TournamentParticipant]): List[TournamentParticipant] =
+    participants.sortWith { (a, b) =>
+      if a.points != b.points then a.points > b.points
+      else if a.tieBreak != b.tieBreak then a.tieBreak > b.tieBreak
+      else a.botName < b.botName
+    }

modules/tournament/src/main/scala/de/nowchess/tournament/service/TournamentStreamManager.scala

@@ -0,0 +1,32 @@
+package de.nowchess.tournament.service
+
+import io.smallrye.mutiny.subscription.MultiEmitter
+import jakarta.enterprise.context.ApplicationScoped
+import java.util.concurrent.{ConcurrentHashMap, CopyOnWriteArrayList}
+import scala.jdk.CollectionConverters.*
+
+@ApplicationScoped
+class TournamentStreamManager:
+
+  private val tournamentEmitters = new ConcurrentHashMap[String, CopyOnWriteArrayList[MultiEmitter[? >: String]]]()
+  private val botEmitters        = new ConcurrentHashMap[String, CopyOnWriteArrayList[MultiEmitter[? >: String]]]()
+
+  private def botKey(tournamentId: String, botId: String): String = s"${tournamentId}:${botId}"
+
+  def register(tournamentId: String, botId: String, emitter: MultiEmitter[? >: String]): Unit =
+    tournamentEmitters.computeIfAbsent(tournamentId, _ => new CopyOnWriteArrayList[MultiEmitter[? >: String]]()).add(emitter)
+    botEmitters.computeIfAbsent(botKey(tournamentId, botId), _ => new CopyOnWriteArrayList[MultiEmitter[? >: String]]()).add(emitter)
+
+  def unregister(tournamentId: String, botId: String, emitter: MultiEmitter[? >: String]): Unit =
+    Option(tournamentEmitters.get(tournamentId)).foreach(_.remove(emitter))
+    Option(botEmitters.get(botKey(tournamentId, botId))).foreach(_.remove(emitter))
+
+  def publish(tournamentId: String, eventJson: String): Unit =
+    Option(tournamentEmitters.get(tournamentId)).foreach { list =>
+      list.asScala.foreach(e => scala.util.Try(e.emit(eventJson)))
+    }
+
+  def publishToBot(tournamentId: String, botId: String, eventJson: String): Unit =
+    Option(botEmitters.get(botKey(tournamentId, botId))).foreach { list =>
+      list.asScala.foreach(e => scala.util.Try(e.emit(eventJson)))
+    }

modules/tournament/src/test/resources/application.yml

@@ -0,0 +1,32 @@
+quarkus:
+  http:
+    port: 8088
+  application:
+    name: nowchess-tournament
+  datasource:
+    db-kind: h2
+    username: sa
+    password: ""
+    jdbc:
+      url: "jdbc:h2:mem:nowchess-tournament;DB_CLOSE_DELAY=-1"
+  hibernate-orm:
+    schema-management:
+      strategy: drop-and-create
+  arc:
+    exclude-types: de.nowchess.tournament.redis.GameResultStreamListener
+mp:
+  jwt:
+    verify:
+      publickey:
+        location: keys/test-public.pem
+      issuer: nowchess
+smallrye:
+  jwt:
+    sign:
+      key:
+        location: keys/test-private.pem
+nowchess:
+  internal:
+    secret: test-secret
+    auth:
+      enabled: false

modules/tournament/src/test/resources/keys/test-private.pem

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----

modules/tournament/src/test/resources/keys/test-public.pem

@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMwR4ESzHs9m+sH3b70y
+VUfMcW6/5CVDIquKLdeCobU2hopBVvu+3s46KmmxVh+wjYw7wElgjNp+1z8S+H4V
+MM7024UWdlzTPNJSgfjiIz94aDS74HkjR20uAs7Tn5NiVbUBS0HWCf4LwaBT4AbW
+WDv0mVTC9vHeVPdia1kSAtXtR7daCsCiaDqrUya7P0bjpSkP3buJMGPJtIz8NOcB
+QNWETFAu/MSpJQlWArn2HsCFE3SsQEytGSlgaDwiZ8Q4PIMIKZ1dcB0KxxnG2b4X
+FYNxlqQ3GHZ6IFeK5bLMLOe/rgIRkckAZJpoVW/s0/i0+1lwzweOjJx5ChSGWsRJ
+BwIDAQAB
+-----END PUBLIC KEY-----

modules/tournament/src/test/scala/de/nowchess/tournament/resource/H2TestProfile.scala

@@ -0,0 +1,15 @@
+package de.nowchess.tournament.resource
+
+import io.quarkus.test.junit.QuarkusTestProfile
+import java.util.Map as JMap
+
+class H2TestProfile extends QuarkusTestProfile:
+
+  override def getConfigOverrides(): JMap[String, String] =
+    JMap.of(
+      "quarkus.datasource.db-kind", "h2",
+      "quarkus.datasource.jdbc.url", "jdbc:h2:mem:nowchess-tournament;DB_CLOSE_DELAY=-1",
+      "quarkus.datasource.username", "sa",
+      "quarkus.datasource.password", "",
+      "quarkus.hibernate-orm.schema-management.strategy", "drop-and-create",
+    )

modules/tournament/src/test/scala/de/nowchess/tournament/resource/TournamentResourceTest.scala

@@ -0,0 +1,233 @@
+package de.nowchess.tournament.resource
+
+import de.nowchess.tournament.client.{CoreGameClient, CoreGameResponse}
+import io.quarkus.test.InjectMock
+import io.quarkus.test.junit.QuarkusTest
+import io.restassured.RestAssured
+import io.restassured.http.ContentType
+import io.restassured.response.ValidatableResponse
+import io.smallrye.jwt.build.Jwt
+import org.eclipse.microprofile.rest.client.inject.RestClient
+import org.hamcrest.Matchers.*
+import org.junit.jupiter.api.{BeforeEach, Test}
+import org.mockito.{ArgumentMatchers, Mockito}
+
+@QuarkusTest
+class TournamentResourceTest:
+
+  @InjectMock
+  @RestClient
+  // scalafix:off DisableSyntax.var
+  var coreGameClient: CoreGameClient = scala.compiletime.uninitialized
+  // scalafix:on
+
+  @BeforeEach
+  def setup(): Unit =
+    Mockito.when(coreGameClient.createGame(ArgumentMatchers.any())).thenReturn(CoreGameResponse("game-test-123"))
+
+  private def g() = RestAssured.`given`().contentType(ContentType.JSON)
+
+  private def directorToken(userId: String = "director-1"): String =
+    Jwt.issuer("nowchess").subject(userId).expiresIn(3600).sign()
+
+  private def botToken(botId: String, botName: String): String =
+    Jwt.issuer("nowchess").subject(botId).claim("type", "bot").claim("name", botName).expiresIn(3600).sign()
+
+  private def authed(token: String) =
+    g().header("Authorization", s"Bearer $token")
+
+  private def formAuthed(token: String) =
+    RestAssured.`given`().contentType(ContentType.URLENC).header("Authorization", s"Bearer $token")
+
+  private def createTournament(token: String, name: String = "Test Tour", nbRounds: Int = 3): String =
+    formAuthed(token)
+      .formParam("name", name)
+      .formParam("nbRounds", nbRounds)
+      .formParam("clockLimit", 300)
+      .formParam("clockIncrement", 5)
+      .formParam("rated", true)
+      .when().post("/api/tournament")
+      .`then`().statusCode(201).extract().path[String]("id")
+
+  private def postAndCheck(token: String, path: String, expectedStatus: Int): ValidatableResponse =
+    authed(token).when().post(path).`then`().statusCode(expectedStatus)
+
+  private def deleteAndCheck(token: String, path: String, expectedStatus: Int): ValidatableResponse =
+    authed(token).when().delete(path).`then`().statusCode(expectedStatus)
+
+  private def botJoin(tournamentId: String, botId: String, botName: String): ValidatableResponse =
+    val bt = botToken(botId, botName)
+    authed(bt).when().post(s"/api/tournament/$tournamentId/join").`then`().statusCode(200)
+
+  private def startTournament(token: String, tournamentId: String): ValidatableResponse =
+    authed(token).when().post(s"/api/tournament/$tournamentId/start").`then`().statusCode(200)
+
+  @Test
+  def createsTournamentWhenAuthenticated(): Unit =
+    formAuthed(directorToken())
+      .formParam("name", "Test Tour")
+      .formParam("nbRounds", 3)
+      .formParam("clockLimit", 300)
+      .formParam("clockIncrement", 5)
+      .formParam("rated", true)
+      .when().post("/api/tournament")
+      .`then`().statusCode(201)
+      .body("fullName", is("Test Tour"))
+      .body("status", is("created"))
+
+  @Test
+  def returns401WhenUnauthenticated(): Unit =
+    RestAssured.`given`().contentType(ContentType.URLENC)
+      .formParam("name", "Test Tour")
+      .formParam("nbRounds", 3)
+      .formParam("clockLimit", 300)
+      .formParam("clockIncrement", 5)
+      .when().post("/api/tournament")
+      .`then`().statusCode(401)
+
+  @Test
+  def returnsEmptyListsOnFreshStart(): Unit =
+    RestAssured.`given`().when().get("/api/tournament")
+      .`then`().statusCode(200)
+      .body("created", notNullValue())
+      .body("started", notNullValue())
+      .body("finished", notNullValue())
+
+  @Test
+  def returnsCreatedTournamentInCreatedList(): Unit =
+    val id = createTournament(directorToken("director-list"), "ListTour")
+    RestAssured.`given`().when().get("/api/tournament")
+      .`then`().statusCode(200)
+      .body("created.id", hasItem(id))
+
+  @Test
+  def returns404ForUnknownId(): Unit =
+    RestAssured.`given`().when().get("/api/tournament/XXXXXX").`then`().statusCode(404)
+
+  @Test
+  def returnsTournamentWithStandings(): Unit =
+    val id = createTournament(directorToken("dir-get"), "GetTour")
+    RestAssured.`given`().when().get(s"/api/tournament/$id")
+      .`then`().statusCode(200)
+      .body("id", is(id))
+      .body("standing", notNullValue())
+
+  @Test
+  def directorCanTerminateCreatedTournament(): Unit =
+    val token = directorToken("dir-term")
+    val id    = createTournament(token, "TermTour")
+    deleteAndCheck(token, s"/api/tournament/$id", 204)
+
+  @Test
+  def nonDirectorGets403OnTerminate(): Unit =
+    val id = createTournament(directorToken("dir-403"), "SecureTour")
+    deleteAndCheck(directorToken("other-user-403"), s"/api/tournament/$id", 403)
+
+  @Test
+  def cannotTerminateStartedTournament(): Unit =
+    val token = directorToken("dir-started")
+    val id    = createTournament(token, "StartedTour")
+    botJoin(id, "sbot-1", "StartBot1")
+    botJoin(id, "sbot-2", "StartBot2")
+    startTournament(token, id)
+    deleteAndCheck(token, s"/api/tournament/$id", 409)
+
+  @Test
+  def botJoinsSuccessfully(): Unit =
+    val id = createTournament(directorToken("dir-join"), "JoinTour")
+    authed(botToken("joinbot-1", "JoinBot1"))
+      .when().post(s"/api/tournament/$id/join")
+      .`then`().statusCode(200)
+      .body("ok", is(true))
+
+  @Test
+  def nonBotTokenReturns403OnJoin(): Unit =
+    val id = createTournament(directorToken("dir-nbjoin"), "NbJoinTour")
+    postAndCheck(directorToken("regular-user"), s"/api/tournament/$id/join", 403)
+
+  @Test
+  def alreadyJoinedReturns409(): Unit =
+    val id = createTournament(directorToken("dir-dbl"), "DblJoinTour")
+    val bt = botToken("dblbot-1", "DblBot1")
+    botJoin(id, "dblbot-1", "DblBot1")
+    authed(bt).when().post(s"/api/tournament/$id/join").`then`().statusCode(409)
+
+  @Test
+  def startedTournamentReturns409OnJoin(): Unit =
+    val token = directorToken("dir-sjoin")
+    val id    = createTournament(token, "SjoinTour")
+    botJoin(id, "sjbot-1", "SjBot1")
+    botJoin(id, "sjbot-2", "SjBot2")
+    startTournament(token, id)
+    authed(botToken("sjbot-3", "SjBot3")).when().post(s"/api/tournament/$id/join").`then`().statusCode(409)
+
+  @Test
+  def joinedBotCanWithdraw(): Unit =
+    val id = createTournament(directorToken("dir-wd"), "WdTour")
+    val bt = botToken("wdbot-1", "WdBot1")
+    botJoin(id, "wdbot-1", "WdBot1")
+    authed(bt).when().post(s"/api/tournament/$id/withdraw")
+      .`then`().statusCode(200)
+      .body("ok", is(true))
+
+  @Test
+  def notJoinedBotReturns409OnWithdraw(): Unit =
+    val id = createTournament(directorToken("dir-wdnj"), "WdnjTour")
+    val bt = botToken("wdnjbot-1", "WdnjBot1")
+    authed(bt).when().post(s"/api/tournament/$id/withdraw").`then`().statusCode(409)
+
+  @Test
+  def directorStartsWith2Bots(): Unit =
+    val token = directorToken("dir-start")
+    val id    = createTournament(token, "StartTour2")
+    botJoin(id, "stbot-1", "StBot1")
+    botJoin(id, "stbot-2", "StBot2")
+    postAndCheck(token, s"/api/tournament/$id/start", 200)
+
+  @Test
+  def nonDirectorReturns403OnStart(): Unit =
+    val id = createTournament(directorToken("dir-ndstart"), "NdStartTour")
+    botJoin(id, "ndstbot-1", "NdstBot1")
+    botJoin(id, "ndstbot-2", "NdstBot2")
+    postAndCheck(directorToken("other-ndstart"), s"/api/tournament/$id/start", 403)
+
+  @Test
+  def fewerThan2BotsReturns409OnStart(): Unit =
+    val token = directorToken("dir-1bot")
+    val id    = createTournament(token, "1BotTour")
+    botJoin(id, "onebot-1", "OneBot1")
+    postAndCheck(token, s"/api/tournament/$id/start", 409)
+
+  @Test
+  def resultsReturns200WithNdjsonContentType(): Unit =
+    val id = createTournament(directorToken("dir-res"), "ResTour")
+    RestAssured.`given`().when().get(s"/api/tournament/$id/results")
+      .`then`().statusCode(200)
+      .contentType("application/x-ndjson")
+
+  @Test
+  def returnsPairingsForRoundAfterStart(): Unit =
+    val token = directorToken("dir-round")
+    val id    = createTournament(token, "RoundTour")
+    botJoin(id, "rndbot-1", "RndBot1")
+    botJoin(id, "rndbot-2", "RndBot2")
+    startTournament(token, id)
+    RestAssured.`given`().when().get(s"/api/tournament/$id/round/1").`then`().statusCode(200)
+
+  @Test
+  def returns404ForUnknownTournamentRound(): Unit =
+    RestAssured.`given`().when().get("/api/tournament/XXXXXX/round/1").`then`().statusCode(404)
+
+  @Test
+  def returnsPgnByDefault(): Unit =
+    val id = createTournament(directorToken("dir-pgn"), "PgnTour")
+    RestAssured.`given`().when().get(s"/api/tournament/$id/export/games").`then`().statusCode(200)
+
+  @Test
+  def returnsNdjsonWhenAcceptApplicationXNdjson(): Unit =
+    val id = createTournament(directorToken("dir-ndjson"), "NdjsonTour")
+    RestAssured.`given`()
+      .header("Accept", "application/x-ndjson")
+      .when().get(s"/api/tournament/$id/export/games")
+      .`then`().statusCode(200)
+      .contentType("application/x-ndjson")

modules/tournament/src/test/scala/de/nowchess/tournament/service/SwissPairingServiceTest.scala

@@ -0,0 +1,73 @@
+package de.nowchess.tournament.service
+
+import de.nowchess.tournament.domain.{TournamentPairing, TournamentParticipant}
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.*
+
+class SwissPairingServiceTest:
+
+  private def makeParticipant(botId: String, botName: String, points: Double = 0.0, byeCount: Int = 0): TournamentParticipant =
+    val p = new TournamentParticipant()
+    p.botId = botId
+    p.botName = botName
+    p.points = points
+    p.byeCount = byeCount
+    p
+
+  @Test
+  def pairs2PlayersRandomlyAssignsColors(): Unit =
+    val p1 = makeParticipant("b1", "BotOne")
+    val p2 = makeParticipant("b2", "BotTwo")
+    val (pairs, bye) = SwissPairingService.computePairings(List(p1, p2), Nil)
+    assertEquals(1, pairs.size)
+    assertTrue(bye.isEmpty)
+    val (white, black) = pairs.head
+    val ids = Set(white.botId, black.botId)
+    assertEquals(Set("b1", "b2"), ids)
+
+  @Test
+  def pairs4PlayersTopVsEachOther(): Unit =
+    val p1 = makeParticipant("b1", "A", points = 2.0)
+    val p2 = makeParticipant("b2", "B", points = 1.5)
+    val p3 = makeParticipant("b3", "C", points = 1.0)
+    val p4 = makeParticipant("b4", "D", points = 0.0)
+    val (pairs, bye) = SwissPairingService.computePairings(List(p1, p2, p3, p4), Nil)
+    assertEquals(2, pairs.size)
+    assertTrue(bye.isEmpty)
+    val pair1Ids = Set(pairs(0)._1.botId, pairs(0)._2.botId)
+    val pair2Ids = Set(pairs(1)._1.botId, pairs(1)._2.botId)
+    assertEquals(Set("b1", "b2"), pair1Ids)
+    assertEquals(Set("b3", "b4"), pair2Ids)
+
+  @Test
+  def oddCountLowestRankedGetsBye(): Unit =
+    val p1 = makeParticipant("b1", "A", points = 2.0)
+    val p2 = makeParticipant("b2", "B", points = 1.0)
+    val p3 = makeParticipant("b3", "C", points = 0.0)
+    val (pairs, bye) = SwissPairingService.computePairings(List(p1, p2, p3), Nil)
+    assertEquals(1, pairs.size)
+    assertTrue(bye.isDefined)
+    assertEquals("b3", bye.get.botId)
+
+  @Test
+  def avoidsRematchSwapsWhenPairAlreadyPlayed(): Unit =
+    val p1 = makeParticipant("b1", "A", points = 2.0)
+    val p2 = makeParticipant("b2", "B", points = 1.5)
+    val p3 = makeParticipant("b3", "C", points = 1.5)
+    val p4 = makeParticipant("b4", "D", points = 0.0)
+    val pastPairing = new TournamentPairing()
+    pastPairing.whiteId = "b1"
+    pastPairing.blackId = "b2"
+    val (pairs, _) = SwissPairingService.computePairings(List(p1, p2, p3, p4), List(pastPairing))
+    val pair1Ids = Set(pairs(0)._1.botId, pairs(0)._2.botId)
+    assertFalse(pair1Ids == Set("b1", "b2"), "b1 and b2 should not be paired again")
+
+  @Test
+  def playerWithFewerByesGetsTheByeFirst(): Unit =
+    val p1 = makeParticipant("b1", "A", points = 1.0, byeCount = 1)
+    val p2 = makeParticipant("b2", "B", points = 0.5, byeCount = 0)
+    val p3 = makeParticipant("b3", "C", points = 0.0, byeCount = 0)
+    val (pairs, bye) = SwissPairingService.computePairings(List(p1, p2, p3), Nil)
+    assertEquals(1, pairs.size)
+    assertTrue(bye.isDefined)
+    assertEquals("b3", bye.get.botId)

settings.gradle.kts

@@ -26,4 +26,5 @@ include(
     "modules:ws",
     "modules:store",
     "modules:coordinator",
+    "modules:tournament",
 )