ci: bump version with Build-116

feat: NCS-82 add Swiss-system tournament module (#55 )
## Summary - Implements the full tournament lifecycle (create, join, withdraw, start, round progression, finish) as a standalone Quarkus module - All 11 endpoints from the OpenAPI spec (`docs/tournament-openapi.yaml`) are covered - Swiss pairing algorithm with Buchholz tiebreak and bye support - Per-bot NDJSON event stream with targeted `gameStart` events carrying the correct `color` field - Game results ingested via Redis writeback stream (`GameResultStreamListener`) ## Known gaps (deferred) - `GET /results` `nb` param defaults to 100 instead of all - `PairingDto` exposes an internal `id` field not in the spec - `GameExport.moves` emits PGN instead of UCI (upstream `GameWritebackEventDto` does not carry UCI moves) - `Pairing.white` can be `null` for bye rounds (spec has no bye concept) ## Test plan - [x] 23 `TournamentResourceTest` integration tests (H2, mocked core client) — all pass - [x] 5 `SwissPairingServiceTest` unit tests — all pass - [x] Redis listener excluded in test/dev profiles; no Docker required to run tests --------- Co-authored-by: LQ63 <lkhermann@web.de> Co-authored-by: Lala, Shahd <Shahd.Lala@sybit.de> Reviewed-on: #55
2026-06-09 13:28:34 +00:00 · 2026-06-09 15:09:53 +02:00 · 2026-06-09 08:54:49 +00:00 · 2026-06-09 10:31:32 +02:00 · 2026-06-06 15:31:33 +02:00 · 2026-06-05 10:28:26 +00:00
53 changed files with 1554 additions and 310 deletions
@@ -0,0 +1,88 @@
+# Create Defect in YouTrack
+
+Automated defect creation workflow. Topic/hint: `$ARGUMENTS`
+
+## Step 1 — Gather Context
+
+Use `AskUserQuestion` tool to ask the user (max 4 questions at once):
+
+1. **Component** — Where does the bug occur? (e.g. move generation, FEN parsing, castling, UI, API)
+2. **What breaks** — What is the actual (broken) behavior?
+3. **Expected** — What should happen instead?
+4. **Reproducibility** — Is it always reproducible? Any known trigger conditions?
+
+If `$ARGUMENTS` already answers some of these, skip those questions.
+
+## Step 2 — Research (if needed)
+
+If the bug involves domain logic or rules:
+- Search repo for relevant code (`Grep`/`Bash`).
+- Check test files for existing coverage of the broken area.
+- Do NOT guess at root cause. Surface findings before drafting.
+
+## Step 3 — Draft Defect
+
+Compose the full defect report using this template:
+
+```
+Summary
+
+[One-sentence description of what is broken.]
+
+
+Steps to Reproduce
+
+1. Step one
+2. Step two
+3. Step three
+
+
+Expected Behavior
+
+[What should happen.]
+
+
+Actual Behavior
+
+[What actually happens.]
+
+
+Environment / Notes
+
+[Any relevant context: FEN positions, game conditions, config, browser, OS — only if applicable.]
+```
+
+Rules:
+- Steps must be minimal and reproducible.
+- Expected vs actual: concrete and unambiguous.
+- Omit "Environment / Notes" section if not relevant.
+
+## Step 4 — Clarify
+
+Show the draft to the user.
+**Use `AskUserQuestion` tool to ask:**
+- Are steps to reproduce complete and accurate?
+- Severity: Blocker / Critical / Major / Minor / Trivial?
+- Any related tickets or recent changes to link?
+
+Incorporate feedback. Repeat until user approves.
+
+## Step 5 — Determine Project
+
+- Frontend / UI / UX → project: `NCWF`
+- Backend / coordinator / systems / bot / engine → project: `NCS`
+
+If ambiguous, ask the user.
+
+## Step 6 — Create Issue
+
+Call `mcp__youtrack__create_issue` with:
+- `project`: determined in Step 5
+- `summary`: concise title describing what is broken (≤72 chars, sentence case)
+- `description`: full formatted defect report from Step 3 (Markdown)
+- `type`: `Bug`
+
+## Step 7 — Report
+
+Display the created issue ID and URL.
+Ask if a linked investigation or fix task is needed.
@@ -66,10 +66,17 @@ Incorporate feedback. Repeat until user approves.

 ## Step 5 — Determine Project

+> **Project routing rules (always apply these):**
+> - Backend code (game engine, bots, API, services, coordinator) → `NCS`
+> - Frontend code (UI, UX, web app) → `NCWF`
+> - Infrastructure (Kubernetes, pipelines, CI/CD, DB setup, cloud infra) → `NCI`
+> - If ambiguous, ask the user.
+
 - Frontend / UI / UX → project: `NCWF`
 - Backend / coordinator / systems / bot / engine → project: `NCS`
+- Kubernetes, pipelines, CI/CD, DB setup, infrastructure → project: `NCI`

-If ambiguous, ask the user.
+If still ambiguous, ask the user.

 ## Step 6 — Create Issue

@@ -79,7 +86,27 @@ Call `mcp__youtrack__create_issue` with:
 - `description`: full formatted story from Step 3 (Markdown)
 - `type`: `Feature` (or `Task` if purely technical with no user-facing value)

-## Step 7 — Report
+## Step 7 — Link Issues
+
+After creation, **automatically** ask the user (use `AskUserQuestion` if interactive, otherwise infer from context):
+
+> Are there related issues to link? (skip if none)
+
+Collect any issue IDs the user mentions. For each, determine the correct relation and call `mcp__youtrack__link_issues`:
+
+| Situation | Relation to use |
+|-----------|----------------|
+| This story must be done before another | `blocks` |
+| Another story must be done before this | `is blocked by` |
+| Stories share domain or are related | `relates to` |
+| This is a child of an epic/story | `subtask of` |
+| This is a parent grouping subtasks | `parent for` |
+| This depends on another ticket's output | `depends on` |
+
+If the user mentions an issue in the story description or implementation notes (e.g. "see NCS-42", "after NCS-12 is done"), auto-detect and suggest linking it — confirm before creating the link.
+
+## Step 8 — Report

 Display the created issue ID and URL.
+List any links created (relation type + linked issue ID).
 Ask if a linked sub-task or implementation ticket is needed.
@@ -39,12 +39,16 @@ After root cause confirmed, assess scope:
 To create subtasks:
 1. Break fix into discrete, independently-completable tasks (e.g. "Fix validation in RuleSet", "Add regression test for castling edge case", "Update FenParser to handle X").
 2. For each subtask call `mcp__youtrack__create_issue` with:
-   - `project`: same project as parent ticket
+   - `project`: based on subtask content — do **not** inherit from parent. Backend code → `NCS`; frontend/UI → `NCWF`; Kubernetes/pipelines/CI-CD/DB setup/infrastructure → `NCI`. If ambiguous, ask user.
   - `summary`: concise action-oriented title
   - `type`: `Task`
   - `description`: what to do and why
 3. Call `mcp__youtrack__link_issues` to link each subtask to `$ARGUMENTS` with relation `subtask of`.
-4. List created subtask IDs to user.
+4. Check if the ticket description or comments mention other issue IDs. For each mentioned ID, suggest a link and confirm with user:
+   - Fix depends on another fix finishing first → `is blocked by`
+   - This fix blocks another ticket → `blocks`
+   - Logically related but independent → `relates to`
+5. List created subtask IDs and any additional links to user.

 Then proceed to Step 4, implementing subtasks in order.

@@ -53,7 +57,10 @@ Then proceed to Step 4, implementing subtasks in order.
 1. Implement fix (use `scala-implementer` agent for non-trivial changes; inline edits for small ones).
 2. Run `./compile` — must be green.
 3. Run `./test` — must be green.
-4. Run `./lint` — must be green.
+4. Run `./gradlew spotlessScalaApply` — **blocking, foreground only**. Wait for completion before continuing.
+5. Run `./lint` — **blocking, foreground only** (never `run_in_background`). Wait for exit code 0. Must be green.
+   - If lint fails, fix all issues and re-run until exit code 0.
+   - **Do NOT proceed to Step 5 until `./lint` has completed and returned exit code 0.**
 If any step fails, iterate until all pass.

 ## Step 5 — Review
@@ -61,6 +68,19 @@ If any step fails, iterate until all pass.
 Spawn `cavecrew-reviewer` on the full diff.
 Display findings grouped by severity.

+## Step 5b — Apply Review Findings
+
+If the review produced any findings (any severity):
+1. Implement all agreed fixes.
+2. Run `./compile` — must be green.
+3. Run `./test` — must be green.
+4. Run `./gradlew spotlessScalaApply` — **blocking, foreground only**. Wait for completion.
+5. Run `./lint` — **blocking, foreground only**. Wait for exit code 0.
+   - If lint fails, fix all issues and re-run until exit code 0.
+6. Re-spawn `cavecrew-reviewer` on the updated diff to confirm all findings are resolved.
+
+Repeat until review is clean or user explicitly accepts remaining findings.
+
 ## Step 6 — Confirm + Push

 Show summary: ticket, branch, files changed, review findings.
@@ -98,7 +118,23 @@ Files changed:
 - <file2>
 ```

+## Step 7b — Additional Links
+
+After commenting, ask the user if `$ARGUMENTS` should be linked to any other issues not already linked:
+
+| Situation | Relation |
+|-----------|---------|
+| This fix blocks another open ticket | `blocks` |
+| Another ticket must ship first | `is blocked by` |
+| Related defect or story | `relates to` |
+| Duplicate of another defect | `duplicates` |
+
+Scan the ticket description and comments for any issue IDs that were mentioned but not yet linked. Suggest those automatically.
+
+Call `mcp__youtrack__link_issues` for each confirmed link.
+
 ## Step 8 — Cleanup

-Call `ExitWorktree` to delete the worktree.
-Report: branch pushed, ticket commented, worktree deleted, done.
+Call `ExitWorktree` with `discard_changes: true` to delete the worktree.
+(Branch was pushed in step 6 — commits are safe on remote; `discard_changes: true` bypasses the local-ahead guard.)
+Report: branch pushed, ticket commented, links created, worktree deleted, done.
@@ -33,7 +33,10 @@ All subsequent file work happens inside this worktree.
 1. Implement feature (use `scala-implementer` agent for non-trivial changes; inline edits for small ones).
 2. Run `./compile` — must be green.
 3. Run `./test` — must be green (add new tests for new behaviour; do not modify existing tests unless requirements changed).
-4. Run `./lint` — must be green.
+4. Run `./gradlew spotlessScalaApply` — **blocking, foreground only**. Wait for completion before continuing.
+5. Run `./lint` — **blocking, foreground only** (never `run_in_background`). Wait for exit code 0. Must be green.
+   - If lint fails, fix all issues and re-run until exit code 0.
+   - **Do NOT proceed to Step 5 until `./lint` has completed and returned exit code 0.**
 If any step fails, iterate until all pass.

 ## Step 5 — Review
@@ -41,6 +44,19 @@ If any step fails, iterate until all pass.
 Spawn `cavecrew-reviewer` on the full diff.
 Display findings grouped by severity.

+## Step 5b — Apply Review Findings
+
+If the review produced any findings (any severity):
+1. Implement all agreed fixes.
+2. Run `./compile` — must be green.
+3. Run `./test` — must be green.
+4. Run `./gradlew spotlessScalaApply` — **blocking, foreground only**. Wait for completion.
+5. Run `./lint` — **blocking, foreground only**. Wait for exit code 0.
+   - If lint fails, fix all issues and re-run until exit code 0.
+6. Re-spawn `cavecrew-reviewer` on the updated diff to confirm all findings are resolved.
+
+Repeat until review is clean or user explicitly accepts remaining findings.
+
 ## Step 6 — Confirm + Push

 Show summary: ticket, branch, files changed, review findings.
@@ -80,5 +96,6 @@ Files changed:

 ## Step 8 — Cleanup

-Call `ExitWorktree` to delete the worktree.
+Call `ExitWorktree` with `discard_changes: true` to delete the worktree.
+(Branch was pushed in step 6 — commits are safe on remote; `discard_changes: true` bypasses the local-ahead guard.)
 Report: branch pushed, ticket commented, worktree deleted, done.
@@ -59,11 +59,15 @@ Rules:
 - Definition of Done: adjust per subtask — not all subtasks need the same criteria (e.g. a research spike has different DoD than an implementation task).
 - Keep description short — one paragraph max.

-## Step 5 — Determine Project
+## Step 5 — Determine Project per Subtask

-Inherit project from parent story (`$ARGUMENTS`):
- If parent is `NCWF-*` → subtasks go in `NCWF`
- If parent is `NCS-*` → subtasks go in `NCS`
+Assign each subtask's project based on its content — do **not** inherit blindly from parent:
+
+- Backend code (game engine, bots, API, services, coordinator) → `NCS`
+- Frontend code (UI, UX, web app) → `NCWF`
+- Kubernetes, pipelines, CI/CD, DB setup, infrastructure → `NCI`
+
+If a subtask's project is ambiguous, ask the user before creating it.

 ## Step 6 — Create Subtasks

@@ -75,8 +79,31 @@ For each subtask call `mcp__youtrack__create_issue` with:

 Then call `mcp__youtrack__link_issues` to link each created subtask to `$ARGUMENTS` with relation `subtask of`.

+## Step 6b — Inter-Subtask Links
+
+If subtasks must be done in sequence (one depends on output of another), add ordering links:
+- For each dependency pair call `mcp__youtrack__link_issues` with relation `is blocked by` (subtask B is blocked by subtask A).
+
+Ask the user to confirm sequencing before adding these links:
+
+> Do any subtasks have ordering dependencies? (e.g. "Implement X must come before Add tests for X")
+
+## Step 6c — External Links
+
+Scan `$ARGUMENTS` description and implementation notes for any referenced issue IDs not already linked. For each:
+
+| Situation | Relation |
+|-----------|---------|
+| Parent story blocks another epic/story | `blocks` |
+| Story depends on another epic completing | `is blocked by` |
+| Related story in same domain | `relates to` |
+| This story duplicates or supersedes | `duplicates` |
+
+Suggest links to the user and call `mcp__youtrack__link_issues` on confirmation.
+
 ## Step 7 — Report

 List all created subtask IDs and summaries.
+List all links created (subtask-of, blocking chains, external).
 Display parent story link.
 Ask if any subtask needs further splitting.
@@ -48,8 +48,9 @@ graphify-out/
 .DS_Store
 /jacoco-reporter/.venv/
 /.claude/settings.local.json
+/.claude/worktrees/
 modules/tournament/src/main/resources/keys/dev-public.pem
 modules/account/src/main/resources/keys/dev-private.pem
 modules/account/src/main/resources/keys/dev-public.pem
 modules/core/src/main/resources/keys/dev-public.pem
-java_pid2736.hprof
+*.hprof
@@ -57,6 +57,14 @@ Use consistently.
 - **Tests are the spec.** Don't modify to pass. Fix requirements/code. Update only if requirements change.
 - Never read build folders. Ask permission if needed.
 - Keep file current with decisions + conventions.
+- **NativeReflectionConfig (mandatory):** Every new type (class, case class, enum, sealed trait — anything serialized) must be registered in the `NativeReflectionConfig` of **every module that interacts with it**. Configs live at:
+  - `modules/account/src/main/scala/de/nowchess/account/config/NativeReflectionConfig.scala`
+  - `modules/coordinator/src/main/scala/de/nowchess/coordinator/config/NativeReflectionConfig.scala`
+  - `modules/core/src/main/scala/de/nowchess/chess/config/NativeReflectionConfig.scala`
+  - `modules/io/src/main/scala/de/nowchess/io/service/config/NativeReflectionConfig.scala`
+  - `modules/rule/src/main/scala/de/nowchess/rules/config/NativeReflectionConfig.scala`
+  - `modules/store/src/main/scala/de/nowchess/store/config/NativeReflectionConfig.scala`
+  - `modules/ws/src/main/scala/de/nowchess/ws/config/NativeReflectionConfig.scala`

 ---

@@ -382,3 +382,111 @@

 * 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))
+##  (2026-06-05)
+
+### 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))
+* **api:** define shared EventEnvelope and EventType for Redis EventBus ([#61](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/61)) ([595c172](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/595c172900da99de367c274488c3ccbeaef55882))
+* **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))
+* **official-bots:** NCS-70-auto-register official bots with account service ([#59](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/59)) ([7117a93](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7117a93376272094d0b1a6abf2121254ce396684))
+* 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))
+##  (2026-06-09)
+
+### 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))
+* **api:** define shared EventEnvelope and EventType for Redis EventBus ([#61](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/61)) ([595c172](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/595c172900da99de367c274488c3ccbeaef55882))
+* **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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* **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))
+* **official-bots:** NCS-70-auto-register official bots with account service ([#59](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/59)) ([7117a93](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7117a93376272094d0b1a6abf2121254ce396684))
+* 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))
+##  (2026-06-09)
+
+### 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))
+* **api:** define shared EventEnvelope and EventType for Redis EventBus ([#61](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/61)) ([595c172](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/595c172900da99de367c274488c3ccbeaef55882))
+* **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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* **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))
+* NCS-82 add Swiss-system tournament module ([#55](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/55)) ([c5661de](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c5661de4a0ebf4b33211f5a391840dcf744656b7))
+* 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))
+* **official-bots:** NCS-70-auto-register official bots with account service ([#59](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/59)) ([7117a93](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7117a93376272094d0b1a6abf2121254ce396684))
+* 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))
@@ -45,6 +45,7 @@ dependencies {
        }
    }

+    implementation(project(":modules:api"))
    implementation(project(":modules:security"))

    implementation(platform("${quarkusPlatformGroupId}:${quarkusPlatformArtifactId}:${quarkusPlatformVersion}"))
@@ -0,0 +1,133 @@
+package de.nowchess.account.client
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import de.nowchess.account.config.RedisConfig
+import de.nowchess.api.dto.{GameCreationRequestDto, GameCreationResponseDto, PlayerInfoDto, TimeControlDto}
+import de.nowchess.api.game.GameMode
+import de.nowchess.api.player.PlayerType
+import de.nowchess.api.event.{EventEnvelope, EventType}
+import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.{StreamMessage, XAddArgs, XGroupCreateArgs, XReadGroupArgs}
+import io.quarkus.runtime.StartupEvent
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.enterprise.event.Observes
+import jakarta.inject.Inject
+import org.eclipse.microprofile.config.inject.ConfigProperty
+import org.eclipse.microprofile.context.ManagedExecutor
+import org.jboss.logging.Logger
+import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+import scala.util.{Failure, Success, Try}
+import java.time.Duration
+import java.util.UUID
+import java.util.concurrent.{CompletableFuture, ConcurrentHashMap, TimeUnit}
+
+@ApplicationScoped
+class GameCreationStreamClient:
+
+  // scalafix:off DisableSyntax.var
+  @Inject var redis: RedisDataSource     = uninitialized
+  @Inject var redisConfig: RedisConfig   = uninitialized
+  @Inject var objectMapper: ObjectMapper = uninitialized
+  @Inject var executor: ManagedExecutor  = uninitialized
+  @ConfigProperty(name = "nowchess.game-creation-stream.enabled", defaultValue = "true")
+  private var streamEnabled: Boolean = true
+  // scalafix:on DisableSyntax.var
+
+  private val log          = Logger.getLogger(classOf[GameCreationStreamClient])
+  private val instanceId   = UUID.randomUUID().toString
+  private val groupName    = s"account-game-creation-$instanceId"
+  private val consumerId   = instanceId
+  private val maxStreamLen = 1000L
+  private val timeout      = Duration.ofSeconds(10)
+
+  private val pending = new ConcurrentHashMap[String, CompletableFuture[GameCreationResponseDto]]()
+
+  private def requestStream: String  = s"${redisConfig.prefix}:game-creation"
+  private def responseStream: String = s"${redisConfig.prefix}:game-creation-response"
+
+  def start(@Observes _ev: StartupEvent): Unit =
+    if streamEnabled then
+      createGroupIfAbsent()
+      executor.submit(
+        new Runnable:
+          def run(): Unit = pollLoop(),
+      )
+      log.infof("Game-creation response listener started (consumer=%s)", consumerId)
+
+  def createGame(req: CoreCreateGameRequest): GameCreationResponseDto =
+    val correlationId = UUID.randomUUID().toString
+    val future        = new CompletableFuture[GameCreationResponseDto]()
+    pending.put(correlationId, future)
+    Try {
+      val payload  = objectMapper.valueToTree[com.fasterxml.jackson.databind.JsonNode](toDto(req))
+      val envelope = EventEnvelope.of(EventType.GameCreationRequest, payload, Some(correlationId))
+      publish(requestStream, envelope)
+      future.get(timeout.toMillis, TimeUnit.MILLISECONDS)
+    } match
+      case Success(resp) =>
+        pending.remove(correlationId)
+        resp
+      case Failure(ex) =>
+        pending.remove(correlationId)
+        log.errorf(ex, "Game creation request %s failed", correlationId)
+        GameCreationResponseDto(None, Some("Game creation request timed out or failed"))
+
+  private def toDto(req: CoreCreateGameRequest): GameCreationRequestDto =
+    GameCreationRequestDto(
+      white = req.white.map(p => PlayerInfoDto(p.id, p.displayName, PlayerType.Human)),
+      black = req.black.map(p => PlayerInfoDto(p.id, p.displayName, PlayerType.Human)),
+      timeControl = req.timeControl.map(t => TimeControlDto(t.limitSeconds, t.incrementSeconds, t.daysPerMove)),
+      mode = req.mode.map(_ => GameMode.Authenticated),
+    )
+
+  private def createGroupIfAbsent(): Unit =
+    Try(
+      redis
+        .stream(classOf[String])
+        .xgroupCreate(responseStream, 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 response consumer group")
+      case Success(_)  => ()
+
+  private def pollLoop(): Unit =
+    while true do
+      Try {
+        val messages = redis
+          .stream(classOf[String])
+          .xreadgroup(
+            groupName,
+            consumerId,
+            responseStream,
+            ">",
+            new XReadGroupArgs().count(10).block(Duration.ofSeconds(2)),
+          )
+        Option(messages).foreach(_.forEach(handleResponse))
+      } match
+        case Failure(ex) => log.warnf(ex, "Error in game-creation response poll loop")
+        case Success(_)  => ()
+
+  private def handleResponse(msg: StreamMessage[String, String, String]): Unit =
+    val json = msg.payload().get("data")
+    Try(objectMapper.readValue(json, classOf[EventEnvelope])) match
+      case Success(envelope) =>
+        envelope.correlationId.flatMap(id => Option(pending.remove(id))).foreach { future =>
+          Try(objectMapper.treeToValue(envelope.payload, classOf[GameCreationResponseDto])) match
+            case Success(resp) => future.complete(resp)
+            case Failure(ex)   => future.completeExceptionally(ex)
+        }
+      case Failure(ex) => log.warnf(ex, "Unparseable game-creation response: %s", json)
+    ack(msg.id())
+
+  private def ack(id: String): Unit =
+    Try(redis.stream(classOf[String]).xack(responseStream, groupName, id)) match
+      case Failure(ex) => log.warnf(ex, "Failed to ack response %s", id)
+      case Success(_)  => ()
+
+  private def publish(key: String, envelope: EventEnvelope): Unit =
+    val json = objectMapper.writeValueAsString(envelope)
+    redis
+      .stream(classOf[String])
+      .xadd(key, new XAddArgs().maxlen(maxStreamLen).nearlyExactTrimming(), Map("data" -> json).asJava)
+    ()
@@ -12,10 +12,19 @@ import de.nowchess.account.domain.{
  UserAccount,
 }
 import de.nowchess.account.dto.*
+import de.nowchess.api.dto.{
+  GameCreationRequestDto,
+  GameCreationResponseDto,
+  PlayerInfoDto as ApiPlayerInfoDto,
+  TimeControlDto as ApiTimeControlDto,
+}
+import de.nowchess.api.event.{EventEnvelope, EventType}
 import io.quarkus.runtime.annotations.RegisterForReflection

@RegisterForReflection(
  targets = Array(
+    classOf[EventEnvelope],
+    classOf[EventType],
    classOf[UserAccount],
    classOf[BotAccount],
    classOf[OfficialBotAccount],
@@ -46,6 +55,10 @@ import io.quarkus.runtime.annotations.RegisterForReflection
    classOf[CoreCreateGameRequest],
    classOf[CoreGameResponse],
    classOf[OfficialChallengeResponse],
+    classOf[GameCreationRequestDto],
+    classOf[GameCreationResponseDto],
+    classOf[ApiPlayerInfoDto],
+    classOf[ApiTimeControlDto],
  ),
 )
 class NativeReflectionConfig
@@ -195,7 +195,7 @@ class AccountResource:

  @POST
  @Path("/official-bots")
-  @RolesAllowed(Array("**"))
+  @RolesAllowed(Array("Admin"))
  def createOfficialBot(req: CreateBotAccountRequest): Response =
    accountService.createOfficialBotAccount(req.name) match
      case Right(bot) =>
@@ -1,6 +1,6 @@
 package de.nowchess.account.resource

-import de.nowchess.account.client.{CoreCreateGameRequest, CoreGameClient, CorePlayerInfo}
+import de.nowchess.account.client.{CoreCreateGameRequest, CorePlayerInfo, GameCreationStreamClient}
 import de.nowchess.account.dto.{ErrorDto, OfficialChallengeResponse}
 import de.nowchess.account.service.{AccountService, EventPublisher}
 import jakarta.annotation.security.RolesAllowed
@@ -9,7 +9,6 @@ import jakarta.inject.Inject
 import jakarta.ws.rs.*
 import jakarta.ws.rs.core.{MediaType, Response}
 import org.eclipse.microprofile.jwt.JsonWebToken
-import org.eclipse.microprofile.rest.client.inject.RestClient
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized

@@ -29,8 +28,7 @@ class OfficialChallengeResource:
  @Inject var botEventPublisher: EventPublisher = uninitialized

  @Inject
-  @RestClient
-  var coreGameClient: CoreGameClient = uninitialized
+  var gameCreationClient: GameCreationStreamClient = uninitialized
  // scalafix:on

  private val log = Logger.getLogger(classOf[OfficialChallengeResource])
@@ -72,7 +70,7 @@ class OfficialChallengeResource:
                  (CorePlayerInfo(bot.id.toString, bot.name), CorePlayerInfo(user.id.toString, user.username), "white")
              val req = CoreCreateGameRequest(Some(white), Some(black), None, Some("Authenticated"))
              val gameId =
-                try Right(coreGameClient.createGame(req).gameId)
+                try gameCreationClient.createGame(req).gameId.toRight("Failed to create game")
                catch case _ => Left("Failed to create game")
              gameId match
                case Left(err) =>
@@ -1,12 +1,6 @@
 package de.nowchess.account.service

-import de.nowchess.account.client.{
-  CoreCreateGameRequest,
-  CoreGameClient,
-  CoreGameResponse,
-  CorePlayerInfo,
-  CoreTimeControl,
-}
+import de.nowchess.account.client.{CoreCreateGameRequest, CorePlayerInfo, CoreTimeControl, GameCreationStreamClient}
 import de.nowchess.account.domain.{Challenge, ChallengeColor, ChallengeStatus, DeclineReason}
 import de.nowchess.account.dto.{
  ChallengeDto,
@@ -23,7 +17,6 @@ import jakarta.annotation.PostConstruct
 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

@@ -45,8 +38,7 @@ class ChallengeService:
  var challengeRepository: ChallengeRepository = uninitialized

  @Inject
-  @RestClient
-  var coreGameClient: CoreGameClient = uninitialized
+  var gameCreationClient: GameCreationStreamClient = uninitialized

  @Inject
  var eventPublisher: EventPublisher = uninitialized
@@ -187,7 +179,7 @@ class ChallengeService:
      val (white, black) = assignColors(challenge)
      val tc             = buildTimeControl(challenge)
      val req            = CoreCreateGameRequest(Some(white), Some(black), tc, Some("Authenticated"))
-      Right(coreGameClient.createGame(req).gameId)
+      gameCreationClient.createGame(req).gameId.toRight(ChallengeError.GameCreationFailed)
    catch case _ => Left(ChallengeError.GameCreationFailed)

  private def assignColors(challenge: Challenge): (CorePlayerInfo, CorePlayerInfo) =
@@ -1,31 +1,61 @@
 package de.nowchess.account.service

+import com.fasterxml.jackson.databind.ObjectMapper
 import de.nowchess.account.config.RedisConfig
+import de.nowchess.api.event.{EventEnvelope, EventType}
 import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.XAddArgs
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*

@ApplicationScoped
 class EventPublisher:

  // scalafix:off DisableSyntax.var
-  @Inject var redis: RedisDataSource   = uninitialized
-  @Inject var redisConfig: RedisConfig = uninitialized
+  @Inject var redis: RedisDataSource     = uninitialized
+  @Inject var redisConfig: RedisConfig   = uninitialized
+  @Inject var objectMapper: ObjectMapper = uninitialized
  // scalafix:on DisableSyntax.var

+  private val maxStreamLen = 1000L
+
  def publishGameStart(botId: String, gameId: String, playingAs: String, difficulty: Int, botAccountId: String): Unit =
-    val event =
-      s"""{"type":"gameStart","gameId":"$gameId","playingAs":"$playingAs","difficulty":$difficulty,"botAccountId":"$botAccountId"}"""
-    redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:bot:$botId:events", event)
+    val payload = objectMapper.createObjectNode()
+    payload.put("gameId", gameId)
+    payload.put("playingAs", playingAs)
+    payload.put("difficulty", difficulty)
+    payload.put("botAccountId", botAccountId)
+    val envelope = EventEnvelope.of(EventType.BotGameStart, payload)
+    val json     = objectMapper.writeValueAsString(envelope)
+    redis
+      .stream(classOf[String])
+      .xadd(
+        s"${redisConfig.prefix}:bot:$botId:events:stream",
+        new XAddArgs().maxlen(maxStreamLen).nearlyExactTrimming(),
+        Map("data" -> json).asJava,
+      )
+    redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:bot:$botId:events", json)
    ()

  def publishChallengeCreated(destUserId: String, challengeId: String, challengerName: String): Unit =
-    val event = s"""{"type":"challengeCreated","challengeId":"$challengeId","challengerName":"$challengerName"}"""
-    redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:user:$destUserId:events", event)
-    ()
+    val payload = objectMapper.createObjectNode()
+    payload.put("challengeId", challengeId)
+    payload.put("challengerName", challengerName)
+    publish(s"${redisConfig.prefix}:user:$destUserId:events", EventType.ChallengeCreated, payload)

  def publishChallengeAccepted(challengerId: String, challengeId: String, gameId: String): Unit =
-    val event = s"""{"type":"challengeAccepted","challengeId":"$challengeId","gameId":"$gameId"}"""
-    redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:user:$challengerId:events", event)
+    val payload = objectMapper.createObjectNode()
+    payload.put("challengeId", challengeId)
+    payload.put("gameId", gameId)
+    publish(s"${redisConfig.prefix}:user:$challengerId:events", EventType.ChallengeAccepted, payload)
+
+  private def publish(
+      channel: String,
+      eventType: EventType,
+      payload: com.fasterxml.jackson.databind.node.ObjectNode,
+  ): Unit =
+    val envelope = EventEnvelope.of(eventType, payload)
+    redis.pubsub(classOf[String]).publish(channel, objectMapper.writeValueAsString(envelope))
    ()
@@ -34,3 +34,5 @@ nowchess:
    secret: test-secret
    auth:
      enabled: false
+  game-creation-stream:
+    enabled: false
@@ -1,11 +1,11 @@
 package de.nowchess.account.resource

-import de.nowchess.account.client.{CoreGameClient, CoreGameResponse}
+import de.nowchess.account.client.GameCreationStreamClient
+import de.nowchess.api.dto.GameCreationResponseDto
 import io.quarkus.test.InjectMock
 import io.quarkus.test.junit.QuarkusTest
 import io.restassured.RestAssured
 import io.restassured.http.ContentType
-import org.eclipse.microprofile.rest.client.inject.RestClient
 import org.hamcrest.Matchers.*
 import org.junit.jupiter.api.{BeforeEach, Test}
 import org.mockito.{ArgumentMatchers, Mockito}
@@ -14,14 +14,15 @@ import org.mockito.{ArgumentMatchers, Mockito}
 class ChallengeResourceTest:

  @InjectMock
-  @RestClient
  // scalafix:off DisableSyntax.var
-  var coreGameClient: CoreGameClient = scala.compiletime.uninitialized
+  var gameCreationClient: GameCreationStreamClient = scala.compiletime.uninitialized
  // scalafix:on

  @BeforeEach
  def setup(): Unit =
-    Mockito.when(coreGameClient.createGame(ArgumentMatchers.any())).thenReturn(CoreGameResponse("test-game-id"))
+    Mockito
+      .when(gameCreationClient.createGame(ArgumentMatchers.any()))
+      .thenReturn(GameCreationResponseDto(Some("test-game-id")))

  private def givenRequest() = RestAssured.`given`().contentType(ContentType.JSON)

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=19
+MINOR=22
 PATCH=0
@@ -145,3 +145,42 @@

 * **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))
+##  (2026-06-05)
+
+### Features
+
+* **api:** define shared EventEnvelope and EventType for Redis EventBus ([#61](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/61)) ([595c172](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/595c172900da99de367c274488c3ccbeaef55882))
+* **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))
+##  (2026-06-09)
+
+### Features
+
+* **api:** define shared EventEnvelope and EventType for Redis EventBus ([#61](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/61)) ([595c172](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/595c172900da99de367c274488c3ccbeaef55882))
+* **dto:** update GameWritebackEventDto for JSON deserialization and remove unused mixin ([576e3fe](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/576e3fea9bf1082549ea53efd3288474c42be93d))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* 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))
@@ -50,6 +50,8 @@ dependencies {
        }
    }
    implementation("com.fasterxml.jackson.core:jackson-databind:${versions["JACKSON"]!!}")
+    implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
+    implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:${versions["JACKSON"]!!}")

    testImplementation(platform("org.junit:junit-bom:5.13.4"))
    testImplementation("org.junit.jupiter:junit-jupiter")
@@ -0,0 +1,10 @@
+package de.nowchess.api.dto
+
+import de.nowchess.api.game.GameMode
+
+final case class GameCreationRequestDto(
+    white: Option[PlayerInfoDto],
+    black: Option[PlayerInfoDto],
+    timeControl: Option[TimeControlDto],
+    mode: Option[GameMode] = None,
+)
@@ -0,0 +1,6 @@
+package de.nowchess.api.dto
+
+final case class GameCreationResponseDto(
+    gameId: Option[String],
+    error: Option[String] = None,
+)
@@ -0,0 +1,27 @@
+package de.nowchess.api.event
+
+import com.fasterxml.jackson.databind.JsonNode
+import java.time.Instant
+import java.util.UUID
+
+final case class EventEnvelope(
+    eventId: UUID,
+    `type`: EventType,
+    payload: JsonNode,
+    timestamp: Instant,
+    correlationId: Option[String],
+)
+
+object EventEnvelope:
+  def of(
+      `type`: EventType,
+      payload: JsonNode,
+      correlationId: Option[String] = None,
+  ): EventEnvelope =
+    EventEnvelope(
+      eventId = UUID.randomUUID(),
+      `type` = `type`,
+      payload = payload,
+      timestamp = Instant.now(),
+      correlationId = correlationId,
+    )
@@ -0,0 +1,4 @@
+package de.nowchess.api.event
+
+enum EventType:
+  case GameStart, GameCreationRequest, GameCreationResponse, BotGameStart, ChallengeCreated, ChallengeAccepted
@@ -0,0 +1,50 @@
+package de.nowchess.api.event
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.scala.DefaultScalaModule
+import org.scalatest.funsuite.AnyFunSuite
+import org.scalatest.matchers.should.Matchers
+
+class EventEnvelopeTest extends AnyFunSuite with Matchers:
+
+  private val mapper =
+    val m = new ObjectMapper()
+    m.registerModule(DefaultScalaModule)
+    m.findAndRegisterModules()
+    m
+
+  test("EventEnvelope round-trips through JSON") {
+    val payload = mapper.createObjectNode()
+    payload.put("gameId", "game-123")
+    payload.put("difficulty", 3)
+
+    val original = EventEnvelope.of(EventType.GameStart, payload, Some("corr-abc"))
+
+    val json    = mapper.writeValueAsString(original)
+    val decoded = mapper.readValue(json, classOf[EventEnvelope])
+
+    decoded.eventId shouldBe original.eventId
+    decoded.`type` shouldBe original.`type`
+    decoded.payload shouldBe original.payload
+    decoded.timestamp shouldBe original.timestamp
+    decoded.correlationId shouldBe Some("corr-abc")
+  }
+
+  test("EventEnvelope serializes without correlationId") {
+    val payload = mapper.createObjectNode()
+    payload.put("challengeId", "ch-1")
+
+    val envelope = EventEnvelope.of(EventType.ChallengeCreated, payload)
+    val json     = mapper.writeValueAsString(envelope)
+    val decoded  = mapper.readValue(json, classOf[EventEnvelope])
+
+    decoded.`type` shouldBe EventType.ChallengeCreated
+    decoded.correlationId shouldBe None
+  }
+
+  test("EventEnvelope.of generates unique eventIds") {
+    val payload = mapper.createObjectNode()
+    val e1      = EventEnvelope.of(EventType.BotGameStart, payload)
+    val e2      = EventEnvelope.of(EventType.BotGameStart, payload)
+    e1.eventId should not equal e2.eventId
+  }
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=14
+MINOR=16
 PATCH=0
@@ -1827,3 +1827,142 @@

 * 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))
+##  (2026-06-09)
+
+### 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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* 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))
+* **redis:** implement game writeback stream processing with error handling and retries ([ae3ef76](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ae3ef766e8b7596a09e466cd4fb386119f17ca5c))
+* **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))
+* **pgn:** add SAN disambiguation and check/checkmate suffixes [NCS-42] ([#56](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/56)) ([2579539](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2579539084152178f4482ddb7b84b7f1162f10da))
+* **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))
+##  (2026-06-09)
+
+### 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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* 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-82 add Swiss-system tournament module ([#55](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/55)) ([c5661de](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c5661de4a0ebf4b33211f5a391840dcf744656b7))
+* 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))
+* **redis:** implement game writeback stream processing with error handling and retries ([ae3ef76](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/ae3ef766e8b7596a09e466cd4fb386119f17ca5c))
+* **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))
+* **pgn:** add SAN disambiguation and check/checkmate suffixes [NCS-42] ([#56](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/56)) ([2579539](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2579539084152178f4482ddb7b84b7f1162f10da))
+* **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))
@@ -138,6 +138,8 @@ tasks.withType(org.gradle.api.tasks.scala.ScalaCompile::class).configureEach {
            exclude("**/resource/GameDtoMapper.scala")
            exclude("**/resource/GameResource.scala")
            exclude("**/redis/GameRedis*.scala")
+            exclude("**/redis/GameCreationStreamListener.scala")
+            exclude("**/service/GameCreationService.scala")
        }
    }
 }
@@ -2,6 +2,7 @@ package de.nowchess.chess.config

 import de.nowchess.api.board.{CastlingRights, Color, File, Piece, PieceType, Rank, Square}
 import de.nowchess.api.dto.*
+import de.nowchess.api.event.{EventEnvelope, EventType}
 import de.nowchess.api.game.{DrawReason, GameContext, GameMode, GameResult}
 import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
 import de.nowchess.chess.registry.GameCacheDto
@@ -13,6 +14,10 @@ import io.quarkus.runtime.annotations.RegisterForReflection
    classOf[GameCacheDto],
    classOf[ClockDto],
    classOf[CreateGameRequestDto],
+    classOf[GameCreationRequestDto],
+    classOf[GameCreationResponseDto],
+    classOf[EventEnvelope],
+    classOf[EventType],
    classOf[ErrorEventDto],
    classOf[GameWritebackEventDto],
    classOf[GameFullDto],
@@ -0,0 +1,146 @@
+package de.nowchess.chess.redis
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import de.nowchess.api.dto.{GameCreationRequestDto, GameCreationResponseDto}
+import de.nowchess.api.event.{EventEnvelope, EventType}
+import de.nowchess.chess.config.RedisConfig
+import de.nowchess.chess.service.GameCreationService
+import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.{StreamMessage, XAddArgs, XGroupCreateArgs, XReadGroupArgs}
+import io.quarkus.runtime.StartupEvent
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.enterprise.event.Observes
+import jakarta.inject.Inject
+import org.eclipse.microprofile.config.inject.ConfigProperty
+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.time.Duration
+import java.util.UUID
+
+@ApplicationScoped
+class GameCreationStreamListener:
+
+  // scalafix:off DisableSyntax.var
+  @Inject var redis: RedisDataSource               = uninitialized
+  @Inject var objectMapper: ObjectMapper           = uninitialized
+  @Inject var creationService: GameCreationService = uninitialized
+  @Inject var executor: ManagedExecutor            = uninitialized
+  @Inject var redisConfig: RedisConfig             = uninitialized
+  @ConfigProperty(name = "nowchess.game-creation-stream.enabled", defaultValue = "true")
+  private var streamEnabled: Boolean = true
+  // scalafix:on DisableSyntax.var
+
+  private val log          = Logger.getLogger(classOf[GameCreationStreamListener])
+  private val groupName    = "core-game-creation"
+  private val consumerId   = UUID.randomUUID().toString
+  private val maxRetries   = 3
+  private val maxStreamLen = 1000L
+
+  private def requestStream: String  = s"${redisConfig.prefix}:game-creation"
+  private def responseStream: String = s"${redisConfig.prefix}:game-creation-response"
+  private def dlqStream: String      = s"${redisConfig.prefix}:dlq"
+
+  def start(@Observes _ev: StartupEvent): Unit =
+    if streamEnabled then
+      createGroupIfAbsent()
+      executor.submit(
+        new Runnable:
+          def run(): Unit = pollLoop(),
+      )
+      log.infof("Game-creation request listener started (consumer=%s)", consumerId)
+
+  private def createGroupIfAbsent(): Unit =
+    Try(
+      redis
+        .stream(classOf[String])
+        .xgroupCreate(requestStream, 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 game-creation consumer group")
+      case Success(_)  => ()
+
+  private def pollLoop(): Unit =
+    while true do
+      Try {
+        val messages = redis
+          .stream(classOf[String])
+          .xreadgroup(
+            groupName,
+            consumerId,
+            requestStream,
+            ">",
+            new XReadGroupArgs().count(10).block(Duration.ofSeconds(2)),
+          )
+        Option(messages).foreach(_.forEach(handleMessage))
+      } match
+        case Failure(ex) => log.warnf(ex, "Error in game-creation poll loop")
+        case Success(_)  => ()
+
+  private def handleMessage(msg: StreamMessage[String, String, String]): Unit =
+    val json    = msg.payload().get("data")
+    val attempt = Option(msg.payload().get("attempt")).flatMap(_.toIntOption).getOrElse(0)
+    Try(objectMapper.readValue(json, classOf[EventEnvelope])) match
+      case Failure(ex) =>
+        log.errorf(ex, "Unparseable game-creation event, sending to DLQ: %s", json)
+        toDlq(EventType.GameCreationRequest.toString, json, ex, attempt)
+        ack(msg.id())
+      case Success(envelope) =>
+        processEnvelope(msg, envelope, json, attempt)
+
+  private def processEnvelope(
+      msg: StreamMessage[String, String, String],
+      envelope: EventEnvelope,
+      json: String,
+      attempt: Int,
+  ): Unit =
+    Try {
+      val req   = objectMapper.treeToValue(envelope.payload, classOf[GameCreationRequestDto])
+      val entry = creationService.createGame(req)
+      publishResponse(envelope.correlationId, GameCreationResponseDto(Some(entry.gameId)))
+    } match
+      case Success(_) => ack(msg.id())
+      case Failure(ex) if attempt + 1 < maxRetries =>
+        log.warnf(ex, "Game creation failed (attempt %d), retrying", attempt)
+        retry(json, attempt + 1)
+        ack(msg.id())
+      case Failure(ex) =>
+        log.errorf(ex, "Game creation failed after %d attempts, sending to DLQ", maxRetries)
+        publishResponse(envelope.correlationId, GameCreationResponseDto(None, Some("Game creation failed")))
+        toDlq(envelope.`type`.toString, json, ex, attempt)
+        ack(msg.id())
+
+  private def publishResponse(correlationId: Option[String], resp: GameCreationResponseDto): Unit =
+    val payload  = objectMapper.valueToTree[com.fasterxml.jackson.databind.JsonNode](resp)
+    val envelope = EventEnvelope.of(EventType.GameCreationResponse, payload, correlationId)
+    xadd(responseStream, Map("data" -> objectMapper.writeValueAsString(envelope)))
+
+  private def retry(json: String, attempt: Int): Unit =
+    xadd(requestStream, Map("data" -> json, "attempt" -> attempt.toString))
+
+  private def toDlq(eventType: String, json: String, error: Throwable, attempt: Int): Unit =
+    xadd(
+      dlqStream,
+      Map(
+        "data"      -> json,
+        "eventType" -> eventType,
+        "error"     -> Option(error.getMessage).getOrElse(error.getClass.getName),
+        "attempt"   -> (attempt + 1).toString,
+      ),
+    )
+
+  private def ack(id: String): Unit =
+    Try(redis.stream(classOf[String]).xack(requestStream, groupName, id)) match
+      case Failure(ex) => log.warnf(ex, "Failed to ack message %s", id)
+      case Success(_)  => ()
+
+  private def xadd(key: String, fields: Map[String, String]): Unit =
+    Try(
+      redis
+        .stream(classOf[String])
+        .xadd(key, new XAddArgs().maxlen(maxStreamLen).nearlyExactTrimming(), fields.asJava),
+    ) match
+      case Failure(ex) => log.errorf(ex, "Failed to publish to stream %s", key)
+      case Success(_)  => ()
@@ -0,0 +1,71 @@
+package de.nowchess.chess.service
+
+import de.nowchess.api.dto.{GameCreationRequestDto, PlayerInfoDto, TimeControlDto}
+import de.nowchess.api.game.{GameContext, GameMode, TimeControl}
+import de.nowchess.api.player.{PlayerId, PlayerInfo}
+import de.nowchess.chess.engine.GameEngine
+import de.nowchess.chess.grpc.RuleSetGrpcAdapter
+import de.nowchess.chess.redis.GameRedisSubscriberManager
+import de.nowchess.chess.registry.{GameEntry, GameRegistry}
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.inject.Inject
+import org.jboss.logging.Logger
+import scala.compiletime.uninitialized
+
+@ApplicationScoped
+class GameCreationService:
+
+  private val log = Logger.getLogger(classOf[GameCreationService])
+
+  // scalafix:off DisableSyntax.var
+  @Inject var registry: GameRegistry                        = uninitialized
+  @Inject var ruleSetAdapter: RuleSetGrpcAdapter            = uninitialized
+  @Inject var subscriberManager: GameRedisSubscriberManager = uninitialized
+  // scalafix:on DisableSyntax.var
+
+  private val DefaultWhite = PlayerInfo(PlayerId("p1"), "Player 1")
+  private val DefaultBlack = PlayerInfo(PlayerId("p2"), "Player 2")
+
+  def createGame(req: GameCreationRequestDto): GameEntry =
+    val white = playerInfoFrom(req.white, DefaultWhite)
+    val black = playerInfoFrom(req.black, DefaultBlack)
+    val tc    = toTimeControl(req.timeControl)
+    val mode  = req.mode.getOrElse(GameMode.Open)
+    val entry = newEntry(GameContext.initial, white, black, tc, mode)
+    registry.store(entry)
+    subscriberManager.subscribeGame(entry.gameId)
+    log.infof(
+      "Game %s created — white=%s black=%s mode=%s",
+      entry.gameId,
+      white.displayName,
+      black.displayName,
+      mode.toString,
+    )
+    entry
+
+  private def playerInfoFrom(dto: Option[PlayerInfoDto], default: PlayerInfo): PlayerInfo =
+    dto.fold(default)(d => PlayerInfo(PlayerId(d.id), d.displayName))
+
+  private def toTimeControl(dto: Option[TimeControlDto]): TimeControl =
+    dto match
+      case None => TimeControl.Unlimited
+      case Some(tc) =>
+        tc.daysPerMove match
+          case Some(d) => TimeControl.Correspondence(d)
+          case None =>
+            tc.limitSeconds.fold(TimeControl.Unlimited)(l => TimeControl.Clock(l, tc.incrementSeconds.getOrElse(0)))
+
+  private def newEntry(
+      ctx: GameContext,
+      white: PlayerInfo,
+      black: PlayerInfo,
+      tc: TimeControl,
+      mode: GameMode,
+  ): GameEntry =
+    GameEntry(
+      registry.generateId(),
+      GameEngine(initialContext = ctx, ruleSet = ruleSetAdapter, timeControl = tc),
+      white,
+      black,
+      mode = mode,
+    )
@@ -18,6 +18,8 @@ nowchess:
      enabled: false
  coordinator:
    enabled: false
+  game-creation-stream:
+    enabled: false
  redis:
    host: localhost
    port: 6379
@@ -0,0 +1,68 @@
+package de.nowchess.chess.service
+
+import de.nowchess.api.dto.{GameCreationRequestDto, PlayerInfoDto, TimeControlDto}
+import de.nowchess.api.game.{GameMode, TimeControl}
+import de.nowchess.api.player.PlayerType
+import de.nowchess.chess.client.CombinedExportResponse
+import de.nowchess.chess.grpc.IoGrpcClientWrapper
+import de.nowchess.chess.redis.GameRedisSubscriberManager
+import io.quarkus.test.InjectMock
+import io.quarkus.test.junit.QuarkusTest
+import jakarta.inject.Inject
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.{BeforeEach, DisplayName, Test}
+import org.mockito.ArgumentMatchers.any
+import org.mockito.Mockito.{verify, when}
+import scala.compiletime.uninitialized
+
+// scalafix:off
+@QuarkusTest
+@DisplayName("GameCreationService")
+class GameCreationServiceTest:
+
+  @Inject
+  var service: GameCreationService = uninitialized
+
+  @InjectMock
+  var subscriberManager: GameRedisSubscriberManager = uninitialized
+
+  @InjectMock
+  var ioWrapper: IoGrpcClientWrapper = uninitialized
+
+  @BeforeEach
+  def setup(): Unit =
+    when(ioWrapper.exportCombined(any()))
+      .thenReturn(CombinedExportResponse("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1", ""))
+
+  private def player(id: String, name: String): PlayerInfoDto =
+    PlayerInfoDto(id, name, PlayerType.Human)
+
+  @Test
+  def createsGameAndSubscribes(): Unit =
+    val req =
+      GameCreationRequestDto(Some(player("w", "White")), Some(player("b", "Black")), None, Some(GameMode.Authenticated))
+    val entry = service.createGame(req)
+    assertNotNull(entry.gameId)
+    assertEquals("White", entry.white.displayName)
+    assertEquals("Black", entry.black.displayName)
+    assertEquals(GameMode.Authenticated, entry.mode)
+    verify(subscriberManager).subscribeGame(entry.gameId)
+
+  @Test
+  def defaultsToOpenModeAndDefaultPlayers(): Unit =
+    val entry = service.createGame(GameCreationRequestDto(None, None, None, None))
+    assertEquals(GameMode.Open, entry.mode)
+    assertEquals("Player 1", entry.white.displayName)
+    assertEquals("Player 2", entry.black.displayName)
+
+  @Test
+  def mapsClockTimeControl(): Unit =
+    val tc    = TimeControlDto(Some(300), Some(5), None)
+    val entry = service.createGame(GameCreationRequestDto(None, None, Some(tc), None))
+    assertEquals(TimeControl.Clock(300, 5), entry.engine.timeControl)
+
+  @Test
+  def mapsCorrespondenceTimeControl(): Unit =
+    val tc    = TimeControlDto(None, None, Some(3))
+    val entry = service.createGame(GameCreationRequestDto(None, None, Some(tc), None))
+    assertEquals(TimeControl.Correspondence(3), entry.engine.timeControl)
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=47
+MINOR=49
 PATCH=0
@@ -179,3 +179,52 @@
 ### Reverts

 * Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-06-09)
+
+### 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))
+* 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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* 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))
+
+### Bug Fixes
+
+* **official-bots:** NCS-70-auto-register official bots with account service ([#59](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/59)) ([7117a93](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7117a93376272094d0b1a6abf2121254ce396684))
+
+### Reverts
+
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
+##  (2026-06-09)
+
+### 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))
+* 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))
+* **events:** migrate game-creation and bot flows to Redis Streams NCS-89 ([#62](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/62)) ([a24924c](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a24924c23057db3d700a75dbc4333557789cd991))
+* 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))
+* NCS-82 add Swiss-system tournament module ([#55](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/55)) ([c5661de](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c5661de4a0ebf4b33211f5a391840dcf744656b7))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **official-bots:** NCS-70-auto-register official bots with account service ([#59](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/59)) ([7117a93](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7117a93376272094d0b1a6abf2121254ce396684))
+
+### Reverts
+
+* Revert "refactor: update metrics paths formatting in application.yml for clarity" ([3870566](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/38705663498d5f47c40dafe2f26198589ede8656))
@@ -1,25 +1,31 @@
 package de.nowchess.bot.service

 import com.fasterxml.jackson.databind.ObjectMapper
+import de.nowchess.api.event.EventEnvelope
 import de.nowchess.api.move.{Move, MoveType, PromotionPiece}
-import de.nowchess.bot.Bot
+import de.nowchess.bot.BotController
 import de.nowchess.bot.BotDifficulty
-import de.nowchess.bot.bots.ClassicalBot
+import de.nowchess.bot.client.{AccountServiceClient, SyncOfficialBotsRequest}
 import de.nowchess.bot.config.RedisConfig
 import de.nowchess.io.fen.FenParser
 import io.micrometer.core.instrument.MeterRegistry
-import io.quarkus.redis.datasource.ReactiveRedisDataSource
-import io.quarkus.redis.datasource.pubsub.ReactivePubSubCommands
+import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.stream.{StreamMessage, XAddArgs, XGroupCreateArgs, XReadGroupArgs}
 import io.quarkus.runtime.StartupEvent
 import jakarta.annotation.PostConstruct
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.enterprise.event.Observes
 import jakarta.inject.Inject
+import org.eclipse.microprofile.context.ManagedExecutor
+import org.eclipse.microprofile.rest.client.inject.RestClient
 import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
+import scala.jdk.CollectionConverters.*
+import scala.util.{Failure, Success, Try}
 import java.time.Duration
-import java.util.concurrent.{ConcurrentHashMap, ExecutorService, Executors}
+import java.util.UUID
 import java.util.function.Consumer
+import java.util.concurrent.TimeUnit

@ApplicationScoped
 class OfficialBotService:
@@ -27,144 +33,181 @@ class OfficialBotService:
  private val log = Logger.getLogger(classOf[OfficialBotService])

  // scalafix:off DisableSyntax.var
-  @Inject var reactiveRedis: ReactiveRedisDataSource = uninitialized
-  @Inject var redisConfig: RedisConfig               = uninitialized
-  @Inject var objectMapper: ObjectMapper             = uninitialized
-  @Inject var meterRegistry: MeterRegistry           = uninitialized
+  @Inject var redis: RedisDataSource       = uninitialized
+  @Inject var redisConfig: RedisConfig     = uninitialized
+  @Inject var objectMapper: ObjectMapper   = uninitialized
+  @Inject var botController: BotController = uninitialized
+  @Inject var meterRegistry: MeterRegistry = uninitialized
+  @Inject var executor: ManagedExecutor    = uninitialized
+
+  @Inject
+  @RestClient
+  var accountServiceClient: AccountServiceClient = uninitialized
  // scalafix:on DisableSyntax.var

-  private val engine: Bot              = ClassicalBot(BotDifficulty.Medium)
-  private val workers: ExecutorService = Executors.newCachedThreadPool()
-
-  // gameId -> (turn color -> bot account id we play that color as)
-  private val watchedGames = new ConcurrentHashMap[String, ConcurrentHashMap[String, String]]()
-  private val subscribers  = new ConcurrentHashMap[String, ReactivePubSubCommands.ReactiveRedisSubscriber]()
-
  private val terminalStatuses =
    Set("checkmate", "resign", "timeout", "stalemate", "insufficientMaterial", "draw")

+  private val groupName    = "official-bot"
+  private val consumerId   = UUID.randomUUID().toString
+  private val maxRetries   = 3
+  private val maxStreamLen = 1000L
+
+  private def eventStream(botName: String): String = s"${redisConfig.prefix}:bot:$botName:events:stream"
+  private def dlqStream: String                    = s"${redisConfig.prefix}:dlq"
+
  @PostConstruct
  def initializeMetrics(): Unit =
-    meterRegistry
-      .timer("nowchess.bot.move.duration", "bot", engineName)
-      .record(0L, java.util.concurrent.TimeUnit.MILLISECONDS)
-    meterRegistry.counter("nowchess.bot.moves.computed", "bot", engineName).increment(0)
+    BotController.listBots.foreach { bot =>
+      meterRegistry.timer("nowchess.bot.move.duration", "bot", bot).record(0L, TimeUnit.MILLISECONDS)
+      meterRegistry.counter("nowchess.bot.moves.computed", "bot", bot).increment(0)
+    }

-  // Wildcard subscription: handles gameStart events for *any* bot account,
-  // whether official (easy/medium/hard/expert) or user-created. Runs at startup
-  // on a context-bearing thread, so the blocking await is safe here.
  def onStart(@Observes event: StartupEvent): Unit =
-    val pattern                   = s"${redisConfig.prefix}:bot:*:events"
-    val handler: Consumer[String] = msg => handleBotEvent(msg)
-    reactiveRedis
-      .pubsub(classOf[String])
-      .subscribeToPattern(pattern, handler)
-      .await()
-      .atMost(Duration.ofSeconds(5))
-    log.infof("Bot engine subscribed to pattern %s", pattern)
+    val bots = BotController.listBots
+    try accountServiceClient.syncBots(SyncOfficialBotsRequest(bots))
+    catch case ex: Exception => log.errorf(ex, "Failed to auto-register official bots with account service")
+    bots.foreach(subscribeToEventChannel)
+
+  private def subscribeToEventChannel(botName: String): Unit =
+    createGroupIfAbsent(botName)
+    executor.submit(
+      new Runnable:
+        def run(): Unit = pollLoop(botName),
+    )
+    log.infof("Listening to bot event stream for %s (consumer=%s)", botName, consumerId)
+
+  private def createGroupIfAbsent(botName: String): Unit =
+    Try(
+      redis
+        .stream(classOf[String])
+        .xgroupCreate(eventStream(botName), 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 bot event consumer group for %s", botName)
+      case Success(_)  => ()
+
+  private def pollLoop(botName: String): Unit =
+    while true do
+      Try {
+        val messages = redis
+          .stream(classOf[String])
+          .xreadgroup(
+            groupName,
+            consumerId,
+            eventStream(botName),
+            ">",
+            new XReadGroupArgs().count(10).block(Duration.ofSeconds(2)),
+          )
+        Option(messages).foreach(_.forEach(msg => handleStreamMessage(botName, msg)))
+      } match
+        case Failure(ex) => log.warnf(ex, "Error in bot event poll loop for %s", botName)
+        case Success(_)  => ()
+
+  private def handleStreamMessage(botName: String, msg: StreamMessage[String, String, String]): Unit =
+    val json    = msg.payload().get("data")
+    val attempt = Option(msg.payload().get("attempt")).flatMap(_.toIntOption).getOrElse(0)
+    Try {
+      val envelope = objectMapper.readValue(json, classOf[EventEnvelope])
+      handleBotEvent(botName, envelope)
+    } match
+      case Success(_) => ack(botName, msg.id())
+      case Failure(ex) if attempt + 1 < maxRetries =>
+        log.warnf(ex, "Bot event handling failed for %s (attempt %d), retrying", botName, attempt)
+        retry(botName, json, attempt + 1)
+        ack(botName, msg.id())
+      case Failure(ex) =>
+        log.errorf(ex, "Bot event handling failed for %s after %d attempts, sending to DLQ", botName, maxRetries)
+        toDlq(json, ex, attempt)
+        ack(botName, msg.id())
+
+  private def handleBotEvent(botName: String, envelope: EventEnvelope): Unit =
+    val payload      = envelope.payload
+    val gameId       = payload.path("gameId").asText()
+    val playingAs    = payload.path("playingAs").asText()
+    val difficulty   = payload.path("difficulty").asInt(1400)
+    val botAccountId = payload.path("botAccountId").asText()
+    watchGame(botName, gameId, playingAs, difficulty, botAccountId)
+
+  private def ack(botName: String, id: String): Unit =
+    Try(redis.stream(classOf[String]).xack(eventStream(botName), groupName, id)) match
+      case Failure(ex) => log.warnf(ex, "Failed to ack bot event %s", id)
+      case Success(_)  => ()
+
+  private def retry(botName: String, json: String, attempt: Int): Unit =
+    xadd(eventStream(botName), Map("data" -> json, "attempt" -> attempt.toString))
+
+  private def toDlq(json: String, error: Throwable, attempt: Int): Unit =
+    xadd(
+      dlqStream,
+      Map(
+        "data"      -> json,
+        "eventType" -> "BotGameStart",
+        "error"     -> Option(error.getMessage).getOrElse(error.getClass.getName),
+        "attempt"   -> (attempt + 1).toString,
+      ),
+    )
+
+  private def xadd(key: String, fields: Map[String, String]): Unit =
+    Try(
+      redis
+        .stream(classOf[String])
+        .xadd(key, new XAddArgs().maxlen(maxStreamLen).nearlyExactTrimming(), fields.asJava),
+    ) match
+      case Failure(ex) => log.errorf(ex, "Failed to publish to stream %s", key)
+      case Success(_)  => ()
+
+  private def watchGame(
+      botName: String,
+      gameId: String,
+      playingAs: String,
+      difficulty: Int,
+      botAccountId: String,
+  ): Unit =
+    val handler: Consumer[String] = msg => handleGameEvent(botName, gameId, playingAs, difficulty, botAccountId, msg)
+    redis.pubsub(classOf[String]).subscribe(s"${redisConfig.prefix}:game:$gameId:s2c", handler)
    ()

-  private def handleBotEvent(msg: String): Unit =
+  private def handleGameEvent(
+      botName: String,
+      gameId: String,
+      playingAs: String,
+      difficulty: Int,
+      botAccountId: String,
+      msg: String,
+  ): Unit =
    try
-      val node = objectMapper.readTree(msg)
-      if node.path("type").asText() == "gameStart" then
-        val gameId    = node.path("gameId").asText()
-        val playingAs = node.path("playingAs").asText()
-        val playerId  = node.path("botAccountId").asText()
-        if gameId.nonEmpty && playerId.nonEmpty && playingAs.nonEmpty then
-          log.infof("gameStart: game=%s playingAs=%s bot=%s", gameId, playingAs, playerId)
-          registerColor(gameId, playingAs, playerId)
-        else log.warnf("gameStart missing gameId/playingAs/botAccountId: %s", msg)
-    catch case e: Exception => log.errorf(e, "Failed to handle bot event: %s", msg)
+      val node   = objectMapper.readTree(msg)
+      val status = node.path("state").path("status").asText("")
+      if !terminalStatuses.contains(status) then
+        val turn = node.path("state").path("turn").asText("")
+        if turn == playingAs then
+          val fen = node.path("state").path("fen").asText()
+          computeAndSendMove(botName, gameId, fen, difficulty, botAccountId)
+    catch case _: Exception => ()

-  private def registerColor(gameId: String, playingAs: String, playerId: String): Unit =
-    val fresh    = new ConcurrentHashMap[String, String]()
-    val existing = watchedGames.putIfAbsent(gameId, fresh)
-    val colors   = if existing == null then fresh else existing
-    colors.put(playingAs, playerId)
-    // Only the first color registered for a game subscribes + triggers the position.
-    if existing == null then subscribeAndConnect(gameId)
-    ()
-
-  // Called on the Redis event-loop thread (the pattern handler's thread), which
-  // carries a Vert.x context. The subscribe must be issued non-blocking from this
-  // context — issuing it from a plain worker thread (or awaiting it there) leaves
-  // the subscribe reply with "no handler waiting" and the call times out.
-  private def subscribeAndConnect(gameId: String): Unit =
-    val s2c                       = s"${redisConfig.prefix}:game:$gameId:s2c"
-    val handler: Consumer[String] = msg => handleGameEvent(gameId, msg)
-    val pubsub                    = reactiveRedis.pubsub(classOf[String])
-    val onSubscribed: Consumer[ReactivePubSubCommands.ReactiveRedisSubscriber] = { subscriber =>
-      subscribers.put(gameId, subscriber)
-      sendConnected(pubsub, gameId)
+  private def computeAndSendMove(
+      botName: String,
+      gameId: String,
+      fen: String,
+      difficulty: Int,
+      botAccountId: String,
+  ): Unit =
+    val level = DifficultyMapper.fromElo(difficulty).getOrElse(BotDifficulty.Medium)
+    botController.getBot(botName).orElse(botController.getBot(level.toString.toLowerCase)).foreach { bot =>
+      FenParser.parseFen(fen).toOption.foreach { context =>
+        val timer   = meterRegistry.timer("nowchess.bot.move.duration", "bot", botName)
+        val moveOpt = timer.recordCallable[Option[Move]](() => bot(context))
+        moveOpt.foreach { move =>
+          meterRegistry.counter("nowchess.bot.moves.computed", "bot", botName).increment()
+          val uci      = toUci(move)
+          val c2sTopic = s"${redisConfig.prefix}:game:$gameId:c2s"
+          val moveMsg  = s"""{"type":"MOVE","uci":"$uci","playerId":"$botAccountId"}"""
+          redis.pubsub(classOf[String]).publish(c2sTopic, moveMsg)
+          ()
+        }
+      }
    }
-    pubsub.subscribe(s2c, handler).subscribe().`with`(onSubscribed, logFailure(s"subscribe to game $gameId"))
-    ()
-
-  // Ask the server to emit the current position (gameFull) immediately.
-  private def sendConnected(pubsub: ReactivePubSubCommands[String], gameId: String): Unit =
-    val c2s                  = s"${redisConfig.prefix}:game:$gameId:c2s"
-    val onOk: Consumer[Void] = _ => log.infof("Watching game %s", gameId)
-    pubsub.publish(c2s, """{"type":"CONNECTED"}""").subscribe().`with`(onOk, logFailure(s"send CONNECTED for game $gameId"))
-    ()
-
-  private def handleGameEvent(gameId: String, msg: String): Unit =
-    try
-      val node = objectMapper.readTree(msg)
-      // gameState has state at root; gameFull (CONNECTED reply) nests it under game.state
-      val stateNode =
-        if node.path("type").asText() == "gameFull" then node.path("game").path("state")
-        else node.path("state")
-      val status = stateNode.path("status").asText("")
-      val turn   = stateNode.path("turn").asText("")
-      if terminalStatuses.contains(status) then stopWatching(gameId)
-      else
-        val colors   = watchedGames.get(gameId)
-        val playerId = if colors == null then null else colors.get(turn)
-        if playerId != null then
-          val fen = stateNode.path("fen").asText()
-          workers.submit(new Runnable { def run(): Unit = computeAndSendMove(gameId, fen, playerId) })
-      ()
-    catch case e: Exception => log.errorf(e, "Failed to handle game event for %s", gameId)
-
-  private def stopWatching(gameId: String): Unit =
-    watchedGames.remove(gameId)
-    Option(subscribers.remove(gameId)).foreach { subscriber =>
-      val noop: Consumer[Void] = _ => ()
-      subscriber
-        .unsubscribe(s"${redisConfig.prefix}:game:$gameId:s2c")
-        .subscribe()
-        .`with`(noop, logFailure(s"unsubscribe game $gameId"))
-    }
-    ()
-
-  // Runs on a worker thread: the engine search must stay off the event loop. The
-  // move is published reactively (scheduled onto the Redis event loop), so the
-  // worker thread's lack of a Vert.x context does not matter for publishing.
-  private def computeAndSendMove(gameId: String, fen: String, playerId: String): Unit =
-    FenParser.parseFen(fen) match
-      case Left(err) => log.warnf("FEN parse failed for game %s: %s", gameId, err.toString)
-      case Right(context) =>
-        val timer   = meterRegistry.timer("nowchess.bot.move.duration", "bot", engineName)
-        val moveOpt = timer.recordCallable[Option[Move]](() => engine(context))
-        moveOpt match
-          case None => log.warnf("Engine returned no move for game %s fen=%s", gameId, fen)
-          case Some(move) =>
-            meterRegistry.counter("nowchess.bot.moves.computed", "bot", engineName).increment()
-            val uci                  = toUci(move)
-            val moveMsg              = s"""{"type":"MOVE","uci":"$uci","playerId":"$playerId"}"""
-            val onOk: Consumer[Void] = _ => log.infof("Bot moved %s in game %s", uci, gameId)
-            reactiveRedis
-              .pubsub(classOf[String])
-              .publish(s"${redisConfig.prefix}:game:$gameId:c2s", moveMsg)
-              .subscribe()
-              .`with`(onOk, logFailure(s"publish move in game $gameId"))
-            ()
-
-  private def logFailure(what: String): Consumer[Throwable] =
-    err => log.errorf(err, "Failed to %s", what)
-
-  private def engineName: String = "classical"

  private def toUci(move: Move): String =
    val base = s"${move.from}${move.to}"
@@ -20,8 +20,8 @@ object TournamentBotConfig:
      tournamentId <- env.get("TOURNAMENT_ID").filter(_.nonEmpty)
      token        <- env.get("TOURNAMENT_BOT_TOKEN").filter(_.nonEmpty)
      botId        <- jwtSubject(token)
-      serverUrl    = env.getOrElse("TOURNAMENT_SERVER_URL", "http://localhost:8089")
-      difficulty   = env.getOrElse("TOURNAMENT_BOT_DIFFICULTY", "medium")
+      serverUrl  = env.getOrElse("TOURNAMENT_SERVER_URL", "http://localhost:8089")
+      difficulty = env.getOrElse("TOURNAMENT_BOT_DIFFICULTY", "medium")
    yield TournamentBotConfig(serverUrl, tournamentId, token, botId, difficulty)

  def jwtSubject(token: String): Option[String] =
@@ -103,7 +103,7 @@ class TournamentBotGamePlayer:
          log.infof("Playing game %s as %s", gameId, color)
          val stream = openGameStream(cfg, gameId)
          maybeMoveFromCurrentState(cfg, gameId, color)
-          if stream != null then consumeGameStream(cfg, gameId, color, stream)
+          stream.foreach(consumeGameStream(cfg, gameId, color, _))
          activeGames.remove(gameId)
    } match
      case Failure(ex) => log.errorf(ex, "Game %s crashed", gameId); activeGames.remove(gameId)
@@ -125,15 +125,20 @@ class TournamentBotGamePlayer:
    val reader = new BufferedReader(new InputStreamReader(stream))
    // scalafix:off DisableSyntax.var
    var done = false
-    var line = reader.readLine()
    // scalafix:on DisableSyntax.var
-    while line != null && running && !done do
-      parse(line).foreach: node =>
-        node.path("type").asText() match
-          case "move" => maybeMove(cfg, gameId, color, node.path("turn").asText(), "ongoing", node.path("fen").asText())
-          case "gameEnd" => log.infof("Game %s ended — status=%s", gameId, node.path("status").asText()); done = true
-          case _         => ()
-      line = reader.readLine()
+    Iterator
+      .continually(reader.readLine())
+      .map(Option(_))
+      .takeWhile(opt => opt.isDefined && running && !done)
+      .flatten
+      .foreach { line =>
+        parse(line).foreach: node =>
+          node.path("type").asText() match
+            case "move" =>
+              maybeMove(cfg, gameId, color, node.path("turn").asText(), "ongoing", node.path("fen").asText())
+            case "gameEnd" => log.infof("Game %s ended — status=%s", gameId, node.path("status").asText()); done = true
+            case _         => ()
+      }

  private def maybeMove(
      cfg: TournamentBotConfig,
@@ -172,14 +177,14 @@ class TournamentBotGamePlayer:
      node
    }.getOrElse(None)

-  private def openGameStream(cfg: TournamentBotConfig, gameId: String): InputStream =
+  private def openGameStream(cfg: TournamentBotConfig, gameId: String): Option[InputStream] =
    Try {
      val response = authed(cfg, target(cfg).path("game").path(gameId).path("stream"))
        .header("Accept", "application/x-ndjson")
        .get()
-      if response.getStatus == 200 then response.readEntity(classOf[InputStream])
-      else { log.warnf("Game stream %s returned status %d", gameId, response.getStatus); response.close(); null }
-    }.getOrElse(null)
+      if response.getStatus == 200 then Some(response.readEntity(classOf[InputStream]))
+      else { log.warnf("Game stream %s returned status %d", gameId, response.getStatus); response.close(); None }
+    }.getOrElse(None)

  private def engine(cfg: TournamentBotConfig): Bot =
    botController.getBot(cfg.difficulty).orElse(botController.getBot("medium")).get
@@ -196,12 +201,14 @@ class TournamentBotGamePlayer:

  private def forEachLine(stream: InputStream)(handle: String => Unit): Unit =
    val reader = new BufferedReader(new InputStreamReader(stream))
-    // scalafix:off DisableSyntax.var
-    var line: String = reader.readLine()
-    // scalafix:on DisableSyntax.var
-    while line != null && running do
-      Try(handle(line)).failed.foreach(ex => log.warnf(ex, "Error handling stream line"))
-      line = reader.readLine()
+    Iterator
+      .continually(reader.readLine())
+      .map(Option(_))
+      .takeWhile(opt => opt.isDefined && running)
+      .flatten
+      .foreach { line =>
+        Try(handle(line)).failed.foreach(ex => log.warnf(ex, "Error handling stream line"))
+      }

  private def toUci(move: Move): String =
    val base = s"${move.from}${move.to}"
@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=14
+MINOR=16
 PATCH=0
@@ -14,10 +14,10 @@ class Tournament:
  @Column(nullable = false)
  var fullName: String = uninitialized

-  var nbRounds: Int = 0
-  var clockLimit: Int = 0
+  var nbRounds: Int       = 0
+  var clockLimit: Int     = 0
  var clockIncrement: Int = 0
-  var rated: Boolean = true
+  var rated: Boolean      = true

  @Column(nullable = false)
  var status: String = "created"
@@ -27,7 +27,7 @@ class Tournament:
  @Column(nullable = false)
  var createdBy: String = uninitialized

-  var startsAt: Instant = uninitialized
-  var winnerId: String = uninitialized
+  var startsAt: Instant  = uninitialized
+  var winnerId: String   = uninitialized
  var winnerName: String = uninitialized
  // scalafix:on
@@ -15,8 +15,8 @@ class TournamentPairing:
  @Column(nullable = false)
  var tournamentId: String = uninitialized

-  var round: Int = 0
-  var whiteId: String = uninitialized
+  var round: Int        = 0
+  var whiteId: String   = uninitialized
  var whiteName: String = uninitialized

  @Column(nullable = false)
@@ -25,7 +25,7 @@ class TournamentPairing:
  @Column(nullable = false)
  var blackName: String = uninitialized

-  var gameId: String = uninitialized
-  var winner: String = uninitialized
+  var gameId: String   = uninitialized
+  var winner: String   = uninitialized
  var moveList: String = uninitialized
  // scalafix:on
@@ -21,11 +21,11 @@ class TournamentParticipant:
  @Column(nullable = false)
  var botName: String = uninitialized

-  var points: Double = 0.0
+  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
+  var nbGames: Int     = 0
+  var wins: Int        = 0
+  var draws: Int       = 0
+  var losses: Int      = 0
+  var byeCount: Int    = 0
  // scalafix:on
@@ -1,10 +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 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")
+  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")
@@ -21,11 +21,11 @@ import java.util.UUID
@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
+  @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])
@@ -37,8 +37,9 @@ class GameResultStreamListener:
  @PostConstruct
  def startListening(): Unit =
    createGroupIfAbsent()
-    executor.submit(new Runnable:
-      def run(): Unit = pollLoop()
+    executor.submit(
+      new Runnable:
+        def run(): Unit = pollLoop(),
    )
    log.infof("Tournament result listener started (consumer=%s)", consumerId)

@@ -49,17 +50,21 @@ class GameResultStreamListener:
      case Success(_)  => ()

  private def pollLoop(): Unit =
+    // scalafix:off DisableSyntax.var
    var running = true
+    // scalafix:on DisableSyntax.var
    while running 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))
+        val messages = redis
+          .stream(classOf[String])
+          .xreadgroup(
+            groupName,
+            consumerId,
+            streamKey,
+            ">",
+            new XReadGroupArgs().count(10).block(java.time.Duration.ofSeconds(2)),
+          )
+        Option(messages).foreach(_.forEach(msg => handleMessage(msg)))
      } match
        case Failure(ex) if isInterrupted(ex) =>
          Thread.currentThread().interrupt()
@@ -68,8 +73,12 @@ class GameResultStreamListener:
        case Success(_)  => ()

  private def isInterrupted(ex: Throwable): Boolean =
-    ex.isInstanceOf[InterruptedException] ||
-      (ex.getCause != null && ex.getCause.isInstanceOf[InterruptedException])
+    ex match
+      case _: InterruptedException => true
+      case _ =>
+        Option(ex.getCause) match
+          case Some(_: InterruptedException) => true
+          case _                             => false

  private def handleMessage(msg: StreamMessage[String, String, String]): Unit =
    val json = msg.payload().get("data")
@@ -41,7 +41,7 @@ class PairingRepository:
      .headOption

  def persist(p: TournamentPairing): TournamentPairing =
-    if p.id == null then
+    if Option(p.id).isEmpty then
      em.persist(p)
      p
    else em.merge(p)
@@ -34,7 +34,7 @@ class ParticipantRepository:
      .headOption

  def persist(p: TournamentParticipant): TournamentParticipant =
-    if p.id == null then
+    if Option(p.id).isEmpty then
      em.persist(p)
      p
    else em.merge(p)
@@ -119,9 +119,13 @@ class TournamentResource:
    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":${r.losses}}"""
-        }.mkString("\n")
+        val ndjson = tournamentService
+          .getResults(id)
+          .take(nb)
+          .map { r =>
+            s"""{"rank":${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
@@ -1,6 +1,6 @@
 package de.nowchess.tournament.service

-import de.nowchess.tournament.domain.{TournamentParticipant, TournamentPairing}
+import de.nowchess.tournament.domain.{TournamentPairing, TournamentParticipant}
 import java.util.concurrent.ThreadLocalRandom

 object SwissPairingService:
@@ -9,9 +9,9 @@ object SwissPairingService:
      participants: List[TournamentParticipant],
      pastPairings: List[TournamentPairing],
  ): (List[(TournamentParticipant, TournamentParticipant)], Option[TournamentParticipant]) =
-    val sorted = sortParticipants(participants)
+    val sorted              = sortParticipants(participants)
    val (remaining, byeOpt) = extractByePlayer(sorted)
-    val pairs = buildPairs(remaining, pastPairings)
+    val pairs               = buildPairs(remaining, pastPairings)
    (pairs, byeOpt)

  private def sortParticipants(participants: List[TournamentParticipant]): List[TournamentParticipant] =
@@ -37,16 +37,21 @@ object SwissPairingService:
  ): 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
+    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 =
+    // scalafix:off DisableSyntax.var
    var i = 0
+    // scalafix:on DisableSyntax.var
    while i < arr.length - 1 do
      if havePlayedBefore(arr(i), arr(i + 1), pastPairings) && i + 2 < arr.length then
-        val tmp    = arr(i + 1)
+        val tmp = arr(i + 1)
        arr(i + 1) = arr(i + 2)
        arr(i + 2) = tmp
      i += 2
@@ -1,9 +1,19 @@
 package de.nowchess.tournament.service

+import com.fasterxml.jackson.databind.ObjectMapper
 import de.nowchess.tournament.client.{CoreCreateGameRequest, CoreGameClient, CorePlayerInfo, CoreTimeControl}
 import de.nowchess.tournament.config.RedisConfig
 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.dto.{
+  BotRef,
+  Clock,
+  CreateTournamentForm,
+  PairingDto,
+  ResultDto,
+  Standing,
+  TournamentDto,
+  Variant,
+}
 import de.nowchess.tournament.error.TournamentError
 import de.nowchess.tournament.repository.{PairingRepository, ParticipantRepository, TournamentRepository}
 import io.quarkus.redis.datasource.RedisDataSource
@@ -31,8 +41,9 @@ class TournamentService:
  @RestClient
  var coreGameClient: CoreGameClient = uninitialized

-  @Inject var redis: RedisDataSource   = uninitialized
-  @Inject var redisConfig: RedisConfig = uninitialized
+  @Inject var redis: RedisDataSource     = uninitialized
+  @Inject var redisConfig: RedisConfig   = uninitialized
+  @Inject var objectMapper: ObjectMapper = uninitialized
  // scalafix:on

  @Transactional
@@ -66,8 +77,7 @@ class TournamentService:
      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)
+    yield tournamentRepository.delete(t)

  @Transactional
  def join(id: String, botId: String, botName: String): Either[TournamentError, Unit] =
@@ -115,7 +125,7 @@ class TournamentService:
    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 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) }
@@ -159,8 +169,16 @@ class TournamentService:
        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"}""")
+        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"}""",
+        )
        publishBotGameStart(white.botName, resp.gameId, "white", white.botId)
        publishBotGameStart(black.botName, resp.gameId, "black", black.botId)

@@ -171,7 +189,15 @@ class TournamentService:
      botAccountId: String,
  ): Unit =
    val channel = s"${redisConfig.prefix}:bot:$botName:events"
-    val payload = s"""{"type":"gameStart","gameId":"$gameId","playingAs":"$playingAs","difficulty":1500,"botAccountId":"$botAccountId"}"""
+    val payload = objectMapper.writeValueAsString(
+      Map(
+        "type"         -> "gameStart",
+        "gameId"       -> gameId,
+        "playingAs"    -> playingAs,
+        "difficulty"   -> 1500,
+        "botAccountId" -> botAccountId,
+      ),
+    )
    Try(redis.pubsub(classOf[String]).publish(channel, payload)) match
      case Failure(ex) => log.warnf(ex, "Failed to publish gameStart to bot channel %s", channel)
      case Success(_)  => ()
@@ -212,7 +238,7 @@ class TournamentService:
  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)
+      val allDone       = roundPairings.nonEmpty && roundPairings.forall(p => Option(p.winner).isDefined)
      if allDone then onRoundComplete(t)
    }

@@ -282,7 +308,7 @@ class TournamentService:
      status = t.status,
      round = t.currentRound,
      standing = Standing(1, standings),
-      winner = if t.winnerId != null then Some(BotRef(t.winnerId, t.winnerName)) else None,
+      winner = Option(t.winnerId).map(id => BotRef(id, t.winnerName)),
    )

  private def toPairingDto(p: TournamentPairing): PairingDto =
@@ -14,8 +14,12 @@ class TournamentStreamManager:
  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)
+    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))
@@ -7,9 +7,14 @@ 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",
+      "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",
    )
@@ -46,8 +46,12 @@ class TournamentResourceTest:
      .formParam("clockLimit", 300)
      .formParam("clockIncrement", 5)
      .formParam("rated", true)
-      .when().post("/api/tournament")
-      .`then`().statusCode(201).extract().path[String]("id")
+      .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)
@@ -70,25 +74,35 @@ class TournamentResourceTest:
      .formParam("clockLimit", 300)
      .formParam("clockIncrement", 5)
      .formParam("rated", true)
-      .when().post("/api/tournament")
-      .`then`().statusCode(201)
+      .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)
+    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)
+      .when()
+      .post("/api/tournament")
+      .`then`()
+      .statusCode(401)

  @Test
  def returnsEmptyListsOnFreshStart(): Unit =
-    RestAssured.`given`().when().get("/api/tournament")
-      .`then`().statusCode(200)
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/tournament")
+      .`then`()
+      .statusCode(200)
      .body("created", notNullValue())
      .body("started", notNullValue())
      .body("finished", notNullValue())
@@ -96,8 +110,12 @@ class TournamentResourceTest:
  @Test
  def returnsCreatedTournamentInCreatedList(): Unit =
    val id = createTournament(directorToken("director-list"), "ListTour")
-    RestAssured.`given`().when().get("/api/tournament")
-      .`then`().statusCode(200)
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/tournament")
+      .`then`()
+      .statusCode(200)
      .body("created.id", hasItem(id))

  @Test
@@ -107,8 +125,12 @@ class TournamentResourceTest:
  @Test
  def returnsTournamentWithStandings(): Unit =
    val id = createTournament(directorToken("dir-get"), "GetTour")
-    RestAssured.`given`().when().get(s"/api/tournament/$id")
-      .`then`().statusCode(200)
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/tournament/$id")
+      .`then`()
+      .statusCode(200)
      .body("id", is(id))
      .body("standing", notNullValue())

@@ -136,8 +158,10 @@ class TournamentResourceTest:
  def botJoinsSuccessfully(): Unit =
    val id = createTournament(directorToken("dir-join"), "JoinTour")
    authed(botToken("joinbot-1", "JoinBot1"))
-      .when().post(s"/api/tournament/$id/join")
-      .`then`().statusCode(200)
+      .when()
+      .post(s"/api/tournament/$id/join")
+      .`then`()
+      .statusCode(200)
      .body("ok", is(true))

  @Test
@@ -166,8 +190,11 @@ class TournamentResourceTest:
    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/$id/withdraw")
-      .`then`().statusCode(200)
+    authed(bt)
+      .when()
+      .post(s"/api/tournament/$id/withdraw")
+      .`then`()
+      .statusCode(200)
      .body("ok", is(true))

  @Test
@@ -201,8 +228,12 @@ class TournamentResourceTest:
  @Test
  def resultsReturns200WithNdjsonContentType(): Unit =
    val id = createTournament(directorToken("dir-res"), "ResTour")
-    RestAssured.`given`().when().get(s"/api/tournament/$id/results")
-      .`then`().statusCode(200)
+    RestAssured
+      .`given`()
+      .when()
+      .get(s"/api/tournament/$id/results")
+      .`then`()
+      .statusCode(200)
      .contentType("application/x-ndjson")

  @Test
@@ -226,8 +257,11 @@ class TournamentResourceTest:
  @Test
  def returnsNdjsonWhenAcceptApplicationXNdjson(): Unit =
    val id = createTournament(directorToken("dir-ndjson"), "NdjsonTour")
-    RestAssured.`given`()
+    RestAssured
+      .`given`()
      .header("Accept", "application/x-ndjson")
-      .when().get(s"/api/tournament/$id/export/games")
-      .`then`().statusCode(200)
+      .when()
+      .get(s"/api/tournament/$id/export/games")
+      .`then`()
+      .statusCode(200)
      .contentType("application/x-ndjson")
@@ -6,7 +6,12 @@ import org.junit.jupiter.api.Assertions.*

 class SwissPairingServiceTest:

-  private def makeParticipant(botId: String, botName: String, points: Double = 0.0, byeCount: Int = 0): TournamentParticipant =
+  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
@@ -16,21 +21,21 @@ class SwissPairingServiceTest:

  @Test
  def pairs2PlayersRandomlyAssignsColors(): Unit =
-    val p1 = makeParticipant("b1", "BotOne")
-    val p2 = makeParticipant("b2", "BotTwo")
+    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)
+    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 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)
@@ -41,9 +46,9 @@ class SwissPairingServiceTest:

  @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 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)
@@ -51,22 +56,22 @@ class SwissPairingServiceTest:

  @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 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)
+    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 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)
Author	SHA1	Message	Date
TeamCity	225c2285b7	ci: bump version with Build-116	2026-06-09 13:28:34 +00:00
lq64	c5661de4a0	feat: NCS-82 add Swiss-system tournament module (#55 ) Build & Test (NowChessSystems) TeamCity build finished Details ## Summary - Implements the full tournament lifecycle (create, join, withdraw, start, round progression, finish) as a standalone Quarkus module - All 11 endpoints from the OpenAPI spec (`docs/tournament-openapi.yaml`) are covered - Swiss pairing algorithm with Buchholz tiebreak and bye support - Per-bot NDJSON event stream with targeted `gameStart` events carrying the correct `color` field - Game results ingested via Redis writeback stream (`GameResultStreamListener`) ## Known gaps (deferred) - `GET /results` `nb` param defaults to 100 instead of all - `PairingDto` exposes an internal `id` field not in the spec - `GameExport.moves` emits PGN instead of UCI (upstream `GameWritebackEventDto` does not carry UCI moves) - `Pairing.white` can be `null` for bye rounds (spec has no bye concept) ## Test plan - [x] 23 `TournamentResourceTest` integration tests (H2, mocked core client) — all pass - [x] 5 `SwissPairingServiceTest` unit tests — all pass - [x] Redis listener excluded in test/dev profiles; no Docker required to run tests --------- Co-authored-by: LQ63 <lkhermann@web.de> Co-authored-by: Lala, Shahd <Shahd.Lala@sybit.de> Reviewed-on: #55	2026-06-09 15:09:53 +02:00
TeamCity	3b6c5297f6	ci: bump version with Build-115	2026-06-09 08:54:49 +00:00
Janis	a24924c230	feat(events): migrate game-creation and bot flows to Redis Streams NCS-89 (#62 ) Build & Test (NowChessSystems) TeamCity build finished Details Replace synchronous account→core game-creation HTTP call and plain pub/sub bot game-start events with Redis Streams using consumer groups, XACK, retry, and a Dead Letter Queue for at-least-once delivery and observability. - account: GameCreationStreamClient publishes game-creation requests and correlates responses via a per-instance consumer group (NCS-91) - core: GameCreationStreamListener consumes requests, calls GameCreationService, publishes response events, retries, and routes exhausted/unparseable events to the DLQ (NCS-91, NCS-93, NCS-94) - official-bots: bot game-start events migrated from pub/sub to Streams with consumer group, XACK, retry, and DLQ (NCS-92) - account EventPublisher dual-writes to the stream and legacy pub/sub channel for backward compatibility - all flows use the typed EventEnvelope (eventId/type/payload/timestamp/ correlationId) with DLQ error context (eventType, error, attempt) - register new DTOs and EventEnvelope/EventType for native reflection Closes NCS-91, NCS-92, NCS-93, NCS-94 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Janis Eccarius <eccariusjanis@gmail.com> Reviewed-on: #62	2026-06-09 10:31:32 +02:00
Janis Eccarius	11826356c1	docs: add automated defect creation workflow guide	2026-06-06 15:31:33 +02:00
TeamCity	e18b1df744	ci: bump version with Build-114 Build & Test (NowChessSystems) TeamCity build failed Details	2026-06-05 10:28:26 +00:00
Janis	595c172900	feat(api): define shared EventEnvelope and EventType for Redis EventBus (#61 ) Build & Test (NowChessSystems) TeamCity build finished Details - Add EventEnvelope case class (eventId, type, payload, timestamp, correlationId) - Add EventType enum with all known event types - Update account EventPublisher to use EventEnvelope instead of raw string interpolation - Add EventEnvelope/EventType to account NativeReflectionConfig - Add Jackson Scala and JSR310 modules to api dependencies - Add api module dependency to account module - Add NativeReflectionConfig rule to CLAUDE.md Closes NCS-90 https://knockoutwhist.youtrack.cloud/issue/NCS-90 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Reviewed-on: #61	2026-06-05 12:11:14 +02:00
Janis	cf225826c0	chore(commands): re-validate after review findings in fix/implement workflows Add Step 5b to fix-defect and implement-feature commands: after applying review comments, rerun compile, test, spotlessScalaApply, and lint, then re-spawn reviewer to confirm findings are resolved. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-06-05 11:17:54 +02:00
Janis	25c05bc2d8	chore(commands): fix ExitWorktree cleanup + ignore worktrees dir Pass discard_changes: true so cleanup succeeds after branch is pushed. Add .claude/worktrees/ to .gitignore. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-06-05 11:15:06 +02:00
Janis	4ec6295d1d	docs(claude): mandate NativeReflectionConfig registration for all serialized types Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-06-05 11:00:45 +02:00
Janis	2d18478110	chore(commands): add auto-linking for blocks/relates-to/subtask relations create-story: Step 7 prompts for issue links and auto-detects IDs in description. fix-defect: Step 3b scans for referenced IDs; Step 7b prompts for post-push links. split-story: Step 6b adds inter-subtask blocking chains; Step 6c links external issues. All commands now use content-based project routing (not parent inheritance). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-06-05 10:13:18 +02:00
Janis	8b95f10c65	chore(commands): enforce blocking lint + spotless before commit Build & Test (NowChessSystems) TeamCity build was removed from queue Details Run spotlessScalaApply then lint synchronously (never background) in fix-defect and implement-feature workflows. Hard gate: do not proceed to review/commit until lint exits 0. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-06-05 09:53:30 +02:00
Janis	f3d96fd700	fix(official-bots): auto-register official bots with account service (#60 ) Build & Test (NowChessSystems) TeamCity build finished Details Reviewed-on: #60	2026-06-05 09:49:30 +02:00