feat(benchmarks): add MoveBenchmark for performance testing of game rules

Reviewed-on: #45
Co-authored-by: Janis <janis.e.20@gmx.de>
Co-committed-by: Janis <janis.e.20@gmx.de>

.codesight/CODESIGHT.md

@@ -351,7 +351,10 @@
   - function unsubscribe
   - _...1 more_
 - `modules/core/src/main/scala/de/nowchess/chess/redis/C2sMessage.scala` — class C2sMessage
-- `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisPublisher.scala` — class GameRedisPublisher, function onGameEvent
+- `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisPublisher.scala`
+  - class GameRedisPublisher
+  - class GameRedisPublisher
+  - function onGameEvent
 - `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisSubscriberManager.scala`
   - class GameRedisSubscriberManager
   - function subscribeGame
@@ -657,7 +660,7 @@
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **9** files
 - `modules/account/src/main/scala/de/nowchess/account/config/RedisConfig.scala` — imported by **8** files
 - `modules/api/src/main/scala/de/nowchess/api/io/GameContextImport.scala` — imported by **8** files
-- `modules/core/src/main/scala/de/nowchess/chess/grpc/IoGrpcClientWrapper.scala` — imported by **7** files
+- `modules/core/src/main/scala/de/nowchess/chess/grpc/IoGrpcClientWrapper.scala` — imported by **8** files
 - `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — imported by **6** files
 - `modules/api/src/main/scala/de/nowchess/api/game/GameMode.scala` — imported by **6** files
 

.codesight/graph.md

@@ -19,7 +19,7 @@
 - `modules/core/src/main/scala/de/nowchess/chess/observer/Observer.scala` — imported by **9** files
 - `modules/account/src/main/scala/de/nowchess/account/config/RedisConfig.scala` — imported by **8** files
 - `modules/api/src/main/scala/de/nowchess/api/io/GameContextImport.scala` — imported by **8** files
-- `modules/core/src/main/scala/de/nowchess/chess/grpc/IoGrpcClientWrapper.scala` — imported by **7** files
+- `modules/core/src/main/scala/de/nowchess/chess/grpc/IoGrpcClientWrapper.scala` — imported by **8** files
 - `modules/api/src/main/scala/de/nowchess/api/player/PlayerInfo.scala` — imported by **6** files
 - `modules/api/src/main/scala/de/nowchess/api/game/GameMode.scala` — imported by **6** files
 

.codesight/libs.md

@@ -295,7 +295,10 @@
   - function unsubscribe
   - _...1 more_
 - `modules/core/src/main/scala/de/nowchess/chess/redis/C2sMessage.scala` — class C2sMessage
-- `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisPublisher.scala` — class GameRedisPublisher, function onGameEvent
+- `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisPublisher.scala`
+  - class GameRedisPublisher
+  - class GameRedisPublisher
+  - function onGameEvent
 - `modules/core/src/main/scala/de/nowchess/chess/redis/GameRedisSubscriberManager.scala`
   - class GameRedisSubscriberManager
   - function subscribeGame

.github/workflows/native-image.yml

@@ -19,12 +19,20 @@ jobs:
       - id: check
         run: |
           if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+            echo "Triggered manually — allowing build"
             echo "allowed=true" >> "$GITHUB_OUTPUT"
           else
             COMMIT_AUTHOR=$(git log -1 --format='%an')
+            COMMIT_SHA=$(git log -1 --format='%H')
+            COMMIT_MSG=$(git log -1 --format='%s')
+            echo "Commit: ${COMMIT_SHA}"
+            echo "Author: ${COMMIT_AUTHOR}"
+            echo "Message: ${COMMIT_MSG}"
             if [[ "$COMMIT_AUTHOR" == "TeamCity" ]]; then
+              echo "Author is TeamCity — allowing build"
               echo "allowed=true" >> "$GITHUB_OUTPUT"
             else
+              echo "Author is not TeamCity — skipping build"
               echo "allowed=false" >> "$GITHUB_OUTPUT"
             fi
           fi
@@ -53,7 +61,39 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Read version from versions.env
+        id: version
+        run: |
+          if [ -f "modules/${{ matrix.module }}/versions.env" ]; then
+            source modules/${{ matrix.module }}/versions.env
+            VERSION="${MAJOR}.${MINOR}.${PATCH}"
+            echo "[${{ matrix.module }}] Version: ${VERSION}"
+            echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+          else
+            echo "[${{ matrix.module }}] No versions.env found — using 'latest'"
+            echo "version=latest" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Check if image exists in GHCR
+        id: image-check
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          PACKAGE="now-chess-systems%2F${{ matrix.module }}"
+          VERSION="${{ steps.version.outputs.version }}"
+          EXISTING_TAGS=$(gh api "orgs/now-chess/packages/container/${PACKAGE}/versions" \
+            --jq '.[].metadata.container.tags[]' 2>/dev/null || echo "")
+          echo "[${{ matrix.module }}] Existing tags: $(echo "${EXISTING_TAGS}" | tr '\n' ' ' | xargs)"
+          if echo "${EXISTING_TAGS}" | grep -qx "${VERSION}"; then
+            echo "[${{ matrix.module }}] Image ${VERSION} already exists — skipping build"
+            echo "exists=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "[${{ matrix.module }}] Image ${VERSION} not found — will build"
+            echo "exists=false" >> "$GITHUB_OUTPUT"
+          fi
+
       - name: Set up GraalVM
+        if: steps.image-check.outputs.exists == 'false'
         uses: graalvm/setup-graalvm@v1
         with:
           java-version: '21'
@@ -61,6 +101,7 @@ jobs:
           native-image-job-reports: 'true'
 
       - name: Cache Gradle packages
+        if: steps.image-check.outputs.exists == 'false'
         uses: actions/cache@v4
         with:
           path: |
@@ -69,24 +110,16 @@ jobs:
           key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
           restore-keys: gradle-${{ runner.os }}-
 
-      - name: Read version from versions.env
-        id: version
-        run: |
-          if [ -f "modules/${{ matrix.module }}/versions.env" ]; then
-            source modules/${{ matrix.module }}/versions.env
-            VERSION="${MAJOR}.${MINOR}.${PATCH}"
-            echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
-          else
-            echo "version=latest" >> "$GITHUB_OUTPUT"
-          fi
-
       - name: Build native binary
+        if: steps.image-check.outputs.exists == 'false'
         run: ./gradlew :modules:${{ matrix.module }}:build -x test -Dquarkus.native.enabled=true -Dquarkus.package.jar.enabled=false -Dquarkus.profile=deployed --no-daemon
 
       - name: Set up Docker Buildx
+        if: steps.image-check.outputs.exists == 'false'
         uses: docker/setup-buildx-action@v3
 
       - name: Log in to GitHub Container Registry
+        if: steps.image-check.outputs.exists == 'false'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
@@ -94,6 +127,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata
+        if: steps.image-check.outputs.exists == 'false'
         id: meta
         uses: docker/metadata-action@v5
         with:
@@ -103,6 +137,7 @@ jobs:
             type=raw,value=latest
 
       - name: Build and push
+        if: steps.image-check.outputs.exists == 'false'
         uses: docker/build-push-action@v6
         with:
           context: .

build.gradle.kts

@@ -3,6 +3,7 @@ plugins {
     id("org.scoverage") version "8.1" apply false
     id("com.diffplug.spotless") version "8.4.0" apply false
     id("io.github.cosmicsilence.scalafix") version "0.2.6" apply false
+    id("me.champeau.jmh") version "0.7.2" apply false
 }
 
 group = "de.nowchess"
@@ -99,7 +100,8 @@ val versions = mapOf(
     "SCALA_PARSER_COMBINATORS" to "2.4.0",
     "FASTPARSE"             to "3.0.2",
     "JACKSON"               to "2.17.2",
-    "JACKSON_SCALA"         to "2.17.2"
+    "JACKSON_SCALA"         to "2.17.2",
+    "JMH"                   to "1.37"
 )
 extra["VERSIONS"] = versions
 

load-tests/README.md

@@ -0,0 +1,100 @@
+# NowChess Load Testing with k6
+
+Performance testing suite for NowChess services using k6.
+
+## Installation
+
+```bash
+# Install k6 (macOS)
+brew install k6
+
+# Or download from https://k6.io/docs/getting-started/installation/
+```
+
+## Test Scenarios
+
+### 1. Ramp-Up Test
+Gradually increases load from 10 to 100 concurrent users.
+
+```bash
+k6 run ramp-up.js
+```
+
+Target: Identify system behavior under gradual load increase.
+
+### 2. Stress Test
+Incremental load increase up to 500 concurrent users to find breaking point.
+
+```bash
+k6 run stress-test.js
+```
+
+Target: Determine system capacity and failure point.
+
+### 3. Spike Test
+Sudden traffic surge (baseline 50 → 500 users instantly).
+
+```bash
+k6 run spike-test.js
+```
+
+Target: Test recovery and resilience to sudden spikes.
+
+### 4. Constant Load Test
+Maintains 50 VUs for 10 minutes.
+
+```bash
+k6 run constant-load.js
+```
+
+Target: Check stability under sustained load.
+
+## Environment Variables
+
+```bash
+# Override service endpoints
+export BASE_URL=http://localhost:8080
+export ACCOUNT_HOST=http://localhost:8083
+export STORE_HOST=http://localhost:8085
+
+k6 run ramp-up.js
+```
+
+## Prerequisites
+
+Ensure services are running:
+- Core: `localhost:8080`
+- Account: `localhost:8083`
+- Store: `localhost:8085`
+- Redis: `localhost:6379` (with increased pool size)
+
+## Metrics Interpretation
+
+- `http_req_duration`: Response time (p95, p99 percentiles matter most)
+- `http_req_failed`: Failed requests (connection errors, errors, non-2xx responses)
+- `vus`: Virtual Users (concurrent connections)
+- `iterations`: Completed test cycles per VU
+
+## Results
+
+k6 generates HTML report output. Use with:
+
+```bash
+k6 run --out=csv=results.csv ramp-up.js
+```
+
+## Troubleshooting
+
+If you see:
+- **"max pool wait timeout"** → Redis pool still too small or maxWaitTime too short
+- **"connection refused"** → Service not running
+- **"high p99 latency"** → System approaching capacity
+
+Increase Redis pool settings in `modules/*/src/main/resources/application.yml`:
+```yaml
+quarkus:
+  redis:
+    pool:
+      max-size: 128  # Increase if still hitting limits
+      max-waiting: 256
+```

load-tests/config.js

@@ -0,0 +1,25 @@
+export const BASE_URL = __ENV.BASE_URL || 'http://localhost:8080';
+export const ACCOUNT_HOST = __ENV.ACCOUNT_HOST || 'http://localhost:8083';
+export const STORE_HOST = __ENV.STORE_HOST || 'http://localhost:8085';
+export const CORE_HOST = BASE_URL;
+
+export const ENDPOINTS = {
+  // Account endpoints
+  accountCreateUser: `${ACCOUNT_HOST}/api/account`,
+  accountLogin: `${ACCOUNT_HOST}/api/account/login`,
+  accountProfile: `${ACCOUNT_HOST}/api/account/me`,
+  accountPublicProfile: (username) => `${ACCOUNT_HOST}/api/account/${username}`,
+
+  // Store endpoints
+  storeGame: `${STORE_HOST}/api/games`,
+  storeGameById: (gameId) => `${STORE_HOST}/api/games/${gameId}`,
+
+  // Core endpoints (game operations)
+  gameWebSocket: (gameId) => `ws://localhost:8080/api/games/${gameId}/ws`,
+};
+
+export const TEST_USERS = [
+  { username: 'load-test-user-1', email: 'load1@example.com' },
+  { username: 'load-test-user-2', email: 'load2@example.com' },
+  { username: 'load-test-user-3', email: 'load3@example.com' },
+];

load-tests/constant-load.js

@@ -0,0 +1,40 @@
+import http from 'k6/http';
+import { check, sleep } from 'k6';
+import { ENDPOINTS } from './config.js';
+
+export const options = {
+  vus: 50,
+  duration: '10m',
+  thresholds: {
+    http_req_duration: ['p(95)<500', 'p(99)<1000'],
+    http_req_failed: ['rate<0.1'],
+  },
+};
+
+export default function () {
+  // Simulate consistent user traffic
+
+  // 1. Get account profile
+  const profileRes = http.get(ENDPOINTS.accountProfile);
+  check(profileRes, {
+    'profile status is 200 or 401': (r) => r.status === 200 || r.status === 401,
+  });
+
+  sleep(0.5);
+
+  // 2. Get public profile
+  const publicRes = http.get(ENDPOINTS.accountPublicProfile('testuser'));
+  check(publicRes, {
+    'public profile status ok': (r) => r.status > 0,
+  });
+
+  sleep(0.5);
+
+  // 3. List store games
+  const gamesRes = http.get(ENDPOINTS.storeGame);
+  check(gamesRes, {
+    'store games status ok': (r) => r.status > 0,
+  });
+
+  sleep(1);
+}

load-tests/ramp-up.js

@@ -0,0 +1,35 @@
+import http from 'k6/http';
+import { check, sleep } from 'k6';
+import { ENDPOINTS, ACCOUNT_HOST } from './config.js';
+
+export const options = {
+  stages: [
+    { duration: '1m', target: 10 },
+    { duration: '3m', target: 50 },
+    { duration: '5m', target: 100 },
+    { duration: '3m', target: 50 },
+    { duration: '1m', target: 0 },
+  ],
+  thresholds: {
+    http_req_duration: ['p(95)<500', 'p(99)<1000'],
+    http_req_failed: ['rate<0.1'],
+  },
+};
+
+export default function () {
+  // Test account endpoints
+  const accountRes = http.get(ENDPOINTS.accountPublicProfile('testuser'));
+  check(accountRes, {
+    'account endpoint status is 200': (r) => r.status === 200,
+  });
+
+  sleep(1);
+
+  // Test store endpoints
+  const storeRes = http.get(ENDPOINTS.storeGame);
+  check(storeRes, {
+    'store endpoint status is 200': (r) => r.status === 200 || r.status === 401,
+  });
+
+  sleep(1);
+}

load-tests/run-tests.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$SCRIPT_DIR"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Default values
+TEST_TYPE="${1:-ramp-up}"
+BASE_URL="${BASE_URL:-http://localhost:8080}"
+OUTPUT_FILE="${2:-results-$(date +%s).csv}"
+
+echo -e "${BLUE}NowChess Load Test Runner${NC}"
+echo "Test Type: $TEST_TYPE"
+echo "Base URL: $BASE_URL"
+echo ""
+
+# Check if k6 is installed
+if ! command -v k6 &> /dev/null; then
+    echo -e "${RED}Error: k6 not found. Install from https://k6.io/docs/getting-started/installation/${NC}"
+    exit 1
+fi
+
+case "$TEST_TYPE" in
+    ramp-up)
+        echo -e "${GREEN}Running Ramp-Up Test (10->100 VUs over 13 minutes)${NC}"
+        k6 run --out=csv=$OUTPUT_FILE ramp-up.js
+        ;;
+    stress)
+        echo -e "${GREEN}Running Stress Test (up to 500 VUs)${NC}"
+        k6 run --out=csv=$OUTPUT_FILE stress-test.js
+        ;;
+    spike)
+        echo -e "${GREEN}Running Spike Test (sudden 50->500 spike)${NC}"
+        k6 run --out=csv=$OUTPUT_FILE spike-test.js
+        ;;
+    constant)
+        echo -e "${GREEN}Running Constant Load Test (50 VUs for 10m)${NC}"
+        k6 run --out=csv=$OUTPUT_FILE constant-load.js
+        ;;
+    all)
+        echo -e "${GREEN}Running All Tests${NC}"
+        for test in ramp-up stress spike constant; do
+            echo ""
+            echo -e "${BLUE}Starting $test test...${NC}"
+            $0 $test
+            sleep 5
+        done
+        exit 0
+        ;;
+    *)
+        echo -e "${RED}Usage: $0 {ramp-up|stress|spike|constant|all} [output-file]${NC}"
+        echo ""
+        echo "Examples:"
+        echo "  $0 ramp-up"
+        echo "  $0 stress results.csv"
+        echo "  $0 all"
+        exit 1
+        ;;
+esac
+
+echo -e "${GREEN}Test complete. Results saved to $OUTPUT_FILE${NC}"

load-tests/spike-test.js

@@ -0,0 +1,36 @@
+import http from 'k6/http';
+import { check, sleep } from 'k6';
+import { ENDPOINTS } from './config.js';
+
+export const options = {
+  stages: [
+    { duration: '1m', target: 50 },
+    { duration: '30s', target: 500, ramp: 'fast' },
+    { duration: '2m', target: 500 },
+    { duration: '30s', target: 50, ramp: 'fast' },
+    { duration: '1m', target: 0 },
+  ],
+  thresholds: {
+    http_req_duration: ['p(95)<2000', 'p(99)<5000'],
+    http_req_failed: ['rate<0.3'],
+  },
+};
+
+export default function () {
+  // Rapid account checks
+  const urls = [
+    ENDPOINTS.accountPublicProfile('testuser'),
+    ENDPOINTS.storeGame,
+    ENDPOINTS.accountProfile,
+  ];
+
+  urls.forEach((url) => {
+    const res = http.get(url);
+    check(res, {
+      'response received': (r) => r.status > 0,
+      'response time under 3s': (r) => r.timings.duration < 3000,
+    });
+  });
+
+  sleep(0.1);
+}

load-tests/stress-test.js

@@ -0,0 +1,38 @@
+import http from 'k6/http';
+import { check, sleep } from 'k6';
+import { ENDPOINTS } from './config.js';
+
+export const options = {
+  stages: [
+    { duration: '2m', target: 100 },
+    { duration: '5m', target: 200 },
+    { duration: '5m', target: 300 },
+    { duration: '5m', target: 400 },
+    { duration: '5m', target: 500 },
+    { duration: '5m', target: 400 },
+    { duration: '5m', target: 200 },
+    { duration: '2m', target: 0 },
+  ],
+  thresholds: {
+    http_req_duration: ['p(95)<1000', 'p(99)<2000'],
+    http_req_failed: ['rate<0.2'],
+  },
+};
+
+export default function () {
+  const userIndex = Math.floor(Math.random() * 10);
+
+  // Burst account endpoint
+  const accountRes = http.get(ENDPOINTS.accountPublicProfile(`user-${userIndex}`));
+  check(accountRes, {
+    'account endpoint responds': (r) => r.status > 0,
+  });
+
+  // Burst store endpoint
+  const storeRes = http.get(ENDPOINTS.storeGame);
+  check(storeRes, {
+    'store endpoint responds': (r) => r.status > 0,
+  });
+
+  sleep(Math.random() * 0.5);
+}

modules/account/CHANGELOG.md

@@ -40,3 +40,26 @@
 * **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))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))

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

@@ -1,9 +1,9 @@
 package de.nowchess.account.client
 
-import de.nowchess.security.InternalSecretClientFilter
+import de.nowchess.security.{InternalClientHeadersFactory, InternalSecretClientFilter}
 import jakarta.ws.rs.*
 import jakarta.ws.rs.core.MediaType
-import org.eclipse.microprofile.rest.client.annotation.RegisterProvider
+import org.eclipse.microprofile.rest.client.annotation.{RegisterClientHeaders, RegisterProvider}
 import org.eclipse.microprofile.rest.client.inject.RegisterRestClient
 
 case class CorePlayerInfo(id: String, displayName: String)
@@ -19,6 +19,7 @@ case class CoreGameResponse(gameId: String)
 @Path("/api/board/game")
 @RegisterRestClient(configKey = "core-service")
 @RegisterProvider(classOf[InternalSecretClientFilter])
+@RegisterClientHeaders(classOf[InternalClientHeadersFactory])
 trait CoreGameClient:
 
   @POST

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

@@ -9,6 +9,7 @@ import io.smallrye.jwt.build.Jwt
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import jakarta.transaction.Transactional
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 
 import java.time.Instant
@@ -17,6 +18,8 @@ import java.util.UUID
 @ApplicationScoped
 class AccountService:
 
+  private val log = Logger.getLogger(classOf[AccountService])
+
   // scalafix:off DisableSyntax.var
   @Inject
   var userAccountRepository: UserAccountRepository = uninitialized
@@ -30,6 +33,7 @@ class AccountService:
 
   @Transactional
   def register(req: RegisterRequest): Either[AccountError, UserAccount] =
+    log.infof("Registering user %s", req.username)
     if userAccountRepository.findByUsername(req.username).isDefined then Left(AccountError.UsernameTaken(req.username))
     else if userAccountRepository.findByEmail(req.email).isDefined then
       Left(AccountError.EmailAlreadyRegistered(req.email))
@@ -40,15 +44,23 @@ class AccountService:
       account.passwordHash = BcryptUtil.bcryptHash(req.password)
       account.createdAt = Instant.now()
       userAccountRepository.persist(account)
+      log.infof("User %s registered successfully", req.username)
       Right(account)
 
   def login(req: LoginRequest): Either[AccountError, String] =
     userAccountRepository.findByUsername(req.username) match
-      case None => Left(AccountError.InvalidCredentials)
+      case None =>
+        log.warnf("Login failed for unknown user %s", req.username)
+        Left(AccountError.InvalidCredentials)
       case Some(account) =>
-        if !BcryptUtil.matches(req.password, account.passwordHash) then Left(AccountError.InvalidCredentials)
+        if !BcryptUtil.matches(req.password, account.passwordHash) then
-        else if account.banned then Left(AccountError.UserBanned)
+          log.warnf("Login failed — invalid credentials for %s", req.username)
+          Left(AccountError.InvalidCredentials)
+        else if account.banned then
+          log.warnf("Login rejected — user %s is banned", req.username)
+          Left(AccountError.UserBanned)
         else
+          log.infof("User %s logged in successfully", req.username)
           Right(
             Jwt
               .issuer("nowchess")
@@ -65,6 +77,7 @@ class AccountService:
 
   @Transactional
   def createBotAccount(ownerId: UUID, botName: String): Either[AccountError, BotAccount] =
+    log.infof("Creating bot account %s for owner %s", botName, ownerId.toString)
     userAccountRepository.findById(ownerId) match
       case None => Left(AccountError.UserNotFound)
       case Some(owner) =>
@@ -77,6 +90,7 @@ class AccountService:
           bot.token = generateBotToken(bot.id)
           bot.createdAt = Instant.now()
           botAccountRepository.persist(bot)
+          log.infof("Bot account %s created for owner %s", botName, ownerId.toString)
           Right(bot)
 
   def getBotAccounts(ownerId: UUID): List[BotAccount] =
@@ -93,6 +107,7 @@ class AccountService:
       case None => Left(AccountError.BotNotFound)
       case Some(_) =>
         botAccountRepository.delete(botId)
+        log.infof("Deleting bot account %s", botId.toString)
         Right(())
 
   @Transactional
@@ -146,6 +161,7 @@ class AccountService:
 
   @Transactional
   def banUser(userId: UUID): Either[AccountError, UserAccount] =
+    log.infof("Banning user %s", userId.toString)
     userAccountRepository.findById(userId) match
       case None => Left(AccountError.UserNotFound)
       case Some(user) =>
@@ -156,6 +172,7 @@ class AccountService:
 
   @Transactional
   def unbanUser(userId: UUID): Either[AccountError, UserAccount] =
+    log.infof("Unbanning user %s", userId.toString)
     userAccountRepository.findById(userId) match
       case None => Left(AccountError.UserNotFound)
       case Some(user) =>

modules/account/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=6
 PATCH=0

modules/benchmarks/.gitignore

@@ -0,0 +1,36 @@
+# Gradle
+.gradle/
+build/
+
+# Eclipse
+.project
+.classpath
+.settings/
+bin/
+
+# IntelliJ
+.idea
+*.ipr
+*.iml
+*.iws
+
+# NetBeans
+nb-configuration.xml
+
+# Visual Studio Code
+.vscode
+.factorypath
+
+# OSX
+.DS_Store
+
+# Vim
+*.swp
+*.swo
+
+# patch
+*.orig
+*.rej
+
+# Local environment
+.env

modules/benchmarks/README.md

@@ -0,0 +1,77 @@
+# JMH Benchmarks
+
+Java Microbenchmark Harness (JMH) benchmarks for performance-critical components.
+
+## Building
+
+```bash
+./gradlew modules:benchmarks:jmhJar
+```
+
+Produces `modules/benchmarks/build/libs/benchmarks-1.0-SNAPSHOT-jmh.jar`.
+
+## Running Benchmarks
+
+Since these benchmarks are written in Scala, JMH auto-discovery via jar packaging doesn't work. Instead, run benchmarks via classpath:
+
+```bash
+./gradlew modules:benchmarks:run --args='de.nowchess.benchmarks.MoveBenchmark'
+```
+
+Or compile and run with explicit classpath:
+```bash
+./gradlew modules:benchmarks:compileScala
+java -cp "modules/benchmarks/build/classes/scala/main:modules/benchmarks/build/resources/main:$(./gradlew -q printClasspath)" \
+  org.openjdk.jmh.Main de.nowchess.benchmarks.MoveBenchmark
+```
+
+Adjust JMH options:
+- `-f 1` — 1 fork (faster iteration, less reliable)
+- `-i 3 -w 2` — 3 measurement iterations, 2 warmup iterations
+- `-bm avgt` — average time mode
+- `-tu us` — time unit (microseconds)
+
+Example:
+```bash
+java -cp "..." org.openjdk.jmh.Main de.nowchess.benchmarks.MoveBenchmark -f 1 -i 3 -w 2 -bm avgt
+```
+
+## Writing Benchmarks
+
+Create Scala class with `@Benchmark` methods:
+
+```scala
+@BenchmarkMode(Array(Mode.AverageTime, Mode.Throughput))
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Benchmark)
+@Fork(2)
+@Warmup(iterations = 3)
+@Measurement(iterations = 5)
+class SomeBenchmark {
+  @Setup(Level.Trial)
+  def setup(): Unit = ???
+
+  @org.openjdk.jmh.annotations.Benchmark
+  def benchmarkSomething(bh: Blackhole): Unit = {
+    val result = expensiveOperation()
+    bh.consume(result)  // Prevent dead-code elimination
+  }
+}
+```
+
+## Benchmark Modes
+
+- `AverageTime` — average execution time per operation
+- `Throughput` — operations per unit time
+- `SampleTime` — latency samples (min, max, percentiles)
+- `SingleShotTime` — total time to execute N ops once
+- `All` — run all modes
+
+## Limitations
+
+JMH's Gradle plugin doesn't fully support Scala annotation processing, so benchmarks must be run explicitly by class name rather than auto-discovered. This is a known limitation of JMH + Scala; consider Java-based benchmarks for full auto-discovery support.
+
+## References
+
+- [OpenJDK JMH](https://github.com/openjdk/jmh)
+- [JMH Samples](https://hg.openjdk.org/code-tools/jmh/file/tip/jmh-samples)

modules/benchmarks/build.gradle.kts

@@ -0,0 +1,61 @@
+plugins {
+    id("scala")
+    id("me.champeau.jmh")
+}
+
+group = "de.nowchess"
+version = "1.0-SNAPSHOT"
+
+@Suppress("UNCHECKED_CAST")
+val versions = rootProject.extra["VERSIONS"] as Map<String, String>
+
+repositories {
+    mavenCentral()
+}
+
+scala {
+    scalaVersion = versions["SCALA3"]!!
+}
+
+dependencies {
+    implementation("org.scala-lang:scala3-library_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+    compileOnly("org.scala-lang:scala3-compiler_3") {
+        version {
+            strictly(versions["SCALA3"]!!)
+        }
+    }
+
+    // Core modules for benchmarking
+    implementation(project(":modules:api"))
+    implementation(project(":modules:core"))
+    implementation(project(":modules:rule"))
+    implementation(project(":modules:bot-platform"))
+
+    // JMH (jmh configuration is for annotation processor + runtime)
+    implementation("org.openjdk.jmh:jmh-core:${versions["JMH"]!!}")
+    jmh("org.openjdk.jmh:jmh-core:${versions["JMH"]!!}")
+    jmh("org.openjdk.jmh:jmh-generator-annprocess:${versions["JMH"]!!}")
+}
+
+configurations.matching { !it.name.startsWith("jmh") }.configureEach {
+    resolutionStrategy.force("org.scala-lang:scala-library:${versions["SCALA_LIBRARY"]!!}")
+}
+
+jmh {
+    jmhVersion.set(versions["JMH"]!!)
+    includeTests.set(false)
+    duplicateClassesStrategy.set(DuplicatesStrategy.WARN)
+}
+
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+    options.compilerArgs.add("-parameters")
+}
+
+tasks.withType<org.gradle.api.tasks.scala.ScalaCompile> {
+    scalaCompileOptions.additionalParameters = listOf("-encoding", "UTF-8")
+}

modules/benchmarks/src/jmh/scala/de/nowchess/benchmarks/MoveBenchmark.scala

@@ -0,0 +1,52 @@
+package de.nowchess.benchmarks
+
+import org.openjdk.jmh.annotations.{BenchmarkMode, Fork, Measurement, OutputTimeUnit, Setup, State, Warmup}
+import org.openjdk.jmh.annotations.Mode
+import org.openjdk.jmh.annotations.Scope
+import org.openjdk.jmh.annotations.Level
+import org.openjdk.jmh.infra.Blackhole
+import de.nowchess.api.board.{File, Rank, Square}
+import de.nowchess.api.game.GameContext
+import de.nowchess.rules.sets.DefaultRules
+
+import java.util.concurrent.TimeUnit
+
+// scalafix:off DisableSyntax.var
+@BenchmarkMode(Array(Mode.AverageTime, Mode.Throughput))
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Benchmark)
+@Fork(value = 2, warmups = 1)
+@Warmup(iterations = 3, time = 1)
+@Measurement(iterations = 5, time = 1)
+class MoveBenchmark {
+  private var gameContext: GameContext = scala.compiletime.uninitialized
+
+  @Setup(Level.Trial)
+  def setup(): Unit =
+    gameContext = GameContext.initial
+
+  @org.openjdk.jmh.annotations.Benchmark
+  def benchmarkAllLegalMoves(bh: Blackhole): Unit = {
+    val moves = DefaultRules.allLegalMoves(gameContext)
+    bh.consume(moves)
+  }
+
+  @org.openjdk.jmh.annotations.Benchmark
+  def benchmarkIsCheck(bh: Blackhole): Unit = {
+    val inCheck = DefaultRules.isCheck(gameContext)
+    bh.consume(inCheck)
+  }
+
+  @org.openjdk.jmh.annotations.Benchmark
+  def benchmarkLegalMovesFirstSquare(bh: Blackhole): Unit = {
+    val firstSquare = Square(File.A, Rank.R2)
+    val moves       = DefaultRules.legalMoves(gameContext)(firstSquare)
+    bh.consume(moves)
+  }
+
+  @org.openjdk.jmh.annotations.Benchmark
+  def benchmarkIsCheckmate(bh: Blackhole): Unit = {
+    val result = DefaultRules.isCheckmate(gameContext)
+    bh.consume(result)
+  }
+}

modules/bot-platform/CHANGELOG.md

@@ -37,3 +37,24 @@
 * **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))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))

modules/bot-platform/src/main/scala/de/nowchess/botplatform/registry/BotRegistry.scala

@@ -6,6 +6,7 @@ import io.quarkus.redis.datasource.pubsub.PubSubCommands
 import io.smallrye.mutiny.subscription.MultiEmitter
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import java.util.concurrent.ConcurrentHashMap
 import java.util.function.Consumer
@@ -13,6 +14,8 @@ import java.util.function.Consumer
 @ApplicationScoped
 class BotRegistry:
 
+  private val log = Logger.getLogger(classOf[BotRegistry])
+
   // scalafix:off DisableSyntax.var
   @Inject var redis: RedisDataSource   = uninitialized
   @Inject var redisConfig: RedisConfig = uninitialized
@@ -25,14 +28,17 @@ class BotRegistry:
     val handler: Consumer[String] = msg => emitter.emit(msg)
     val subscriber                = redis.pubsub(classOf[String]).subscribe(channel, handler)
     connections.put(botId, (emitter, subscriber))
+    log.infof("Bot %s registered", botId)
     ()
 
   def unregister(botId: String): Unit =
     Option(connections.remove(botId)).foreach { (_, subscriber) =>
       subscriber.unsubscribe(s"${redisConfig.prefix}:bot:$botId:events")
     }
+    log.infof("Bot %s unregistered", botId)
 
   def dispatch(botId: String, event: String): Unit =
+    log.debugf("Dispatching event to bot %s", botId)
     redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:bot:$botId:events", event)
     ()
 

modules/bot-platform/src/main/scala/de/nowchess/botplatform/resource/BotEventResource.scala

@@ -10,6 +10,7 @@ import jakarta.inject.Inject
 import jakarta.ws.rs.*
 import jakarta.ws.rs.core.{MediaType, Response}
 import org.eclipse.microprofile.jwt.JsonWebToken
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import java.util.function.Consumer
 
@@ -18,6 +19,8 @@ import java.util.function.Consumer
 @RolesAllowed(Array("**"))
 class BotEventResource:
 
+  private val log = Logger.getLogger(classOf[BotEventResource])
+
   // scalafix:off DisableSyntax.var
   @Inject var registry: BotRegistry    = uninitialized
   @Inject var jwt: JsonWebToken        = uninitialized
@@ -32,8 +35,10 @@ class BotEventResource:
     val tokenType = Option(jwt.getClaim[AnyRef]("type")).map(_.toString).getOrElse("")
     val subject   = Option(jwt.getSubject).getOrElse("")
     if tokenType != "bot" || subject != botId then
+      log.warnf("Unauthorized bot stream access — tokenType=%s subject=%s botId=%s", tokenType, subject, botId)
       Multi.createFrom().failure(new ForbiddenException("Not authorized for this bot"))
     else
+      log.infof("Bot %s connected to event stream", botId)
       Multi.createFrom().emitter[String] { emitter =>
         registry.register(botId, emitter)
         emitter.onTermination(() => registry.unregister(botId))
@@ -58,6 +63,7 @@ class BotEventResource:
       @PathParam("uci") uci: String,
   ): Response =
     val playerId = Option(jwt.getSubject).getOrElse("")
-    val moveMsg  = s"""{"type":"MOVE","uci":"$uci","playerId":"$playerId"}"""
+    log.debugf("Bot move %s in game %s by player %s", uci, gameId, playerId)
+    val moveMsg = s"""{"type":"MOVE","uci":"$uci","playerId":"$playerId"}"""
     redis.pubsub(classOf[String]).publish(s"${redisConfig.prefix}:game:$gameId:c2s", moveMsg)
     Response.ok().build()

modules/bot-platform/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=6
 PATCH=0

modules/coordinator/CHANGELOG.md

@@ -37,3 +37,104 @@
 * **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))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* 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:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+##  (2026-05-03)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+##  (2026-05-05)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **coordinator:** refine type casting in rolloutSpec method ([#45](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/45)) ([d522f7f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/d522f7f6edf9c985f03dd16816439d4184f1a589))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#43](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/43)) ([fa3c6b2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fa3c6b2886dc59c14c5dad834acc9b41e42023bb))
+* **coordinator:** use genericKubernetesResources API for Argo Rollout scaling ([#44](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/44)) ([82d0b75](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/82d0b754be1075084944b466858672d944f9f7d8))
+* **dependencies:** replace Fabric8 Kubernetes client with Quarkus Kubernetes client ([5f44570](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5f44570b357277d09f33b7296860c421e2e70ce0))
+* **middleware:** update paths for bot generation and stockfish configuration ([2dd0501](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2dd0501687db08dcd242359f6837125baf8a2fdc))
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))

modules/coordinator/build.gradle.kts

@@ -73,7 +73,7 @@ dependencies {
     implementation("io.quarkus:quarkus-rest-client-jackson")
     implementation("com.fasterxml.jackson.module:jackson-module-scala_3:${versions["JACKSON_SCALA"]!!}")
     implementation("io.quarkus:quarkus-redis-client")
-    implementation("io.fabric8:kubernetes-client:6.13.0")
+    implementation("io.quarkus:quarkus-kubernetes-client")
 
     testImplementation(platform("org.junit:junit-bom:${versions["JUNIT_BOM"]!!}"))
     testImplementation("org.junit.jupiter:junit-jupiter")

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

@@ -5,11 +5,12 @@ quarkus:
     port: 8086
   redis:
     hosts: redis://${REDIS_HOST:localhost}:${REDIS_PORT:6379}
+    max-pool-size: 64
+    max-pool-waiting: 128
   grpc:
     server:
       port: 9086
   rest-client:
-    connection-timeout: 5000
     read-timeout: 10000
   smallrye-openapi:
     info-title: NowChess Coordinator Service

modules/coordinator/src/main/scala/de/nowchess/coordinator/grpc/CoordinatorGrpcServer.scala

@@ -27,13 +27,24 @@ class CoordinatorGrpcServer extends CoordinatorServiceGrpc.CoordinatorServiceImp
   override def heartbeatStream(
       responseObserver: StreamObserver[CoordinatorCommand],
   ): StreamObserver[HeartbeatFrame] =
+    log.info("New heartbeat stream connection established")
     new StreamObserver[HeartbeatFrame]:
       // scalafix:off DisableSyntax.var
       private var lastInstanceId = ""
+      private var firstFrameSeen = false
       // scalafix:on DisableSyntax.var
 
       override def onNext(frame: HeartbeatFrame): Unit =
         lastInstanceId = frame.getInstanceId
+        if !firstFrameSeen then
+          firstFrameSeen = true
+          log.infof(
+            "First heartbeat from instance %s (host=%s http=%d grpc=%d)",
+            frame.getInstanceId,
+            frame.getHostname,
+            frame.getHttpPort,
+            frame.getGrpcPort,
+          )
         instanceRegistry
           .updateInstanceFromRedis(frame.getInstanceId)
           .subscribe()

modules/coordinator/src/main/scala/de/nowchess/coordinator/grpc/CoreGrpcClient.scala

@@ -16,10 +16,18 @@ class CoreGrpcClient:
   private val channels = ConcurrentHashMap[String, ManagedChannel]()
 
   private def getChannel(host: String, port: Int): ManagedChannel =
-    channels.computeIfAbsent(s"$host:$port", _ => ManagedChannelBuilder.forAddress(host, port).usePlaintext().build())
+    channels.computeIfAbsent(
+      s"$host:$port",
+      _ =>
+        log.infof("Opening gRPC channel to %s:%d", host, port)
+        ManagedChannelBuilder.forAddress(host, port).usePlaintext().build(),
+    )
 
   private def evictStaleChannel(host: String, port: Int): Unit =
-    Option(channels.remove(s"$host:$port")).foreach(_.shutdownNow())
+    Option(channels.remove(s"$host:$port")).foreach { ch =>
+      log.infof("Evicting stale gRPC channel to %s:%d", host, port)
+      ch.shutdownNow()
+    }
 
   @PreDestroy
   def shutdown(): Unit =
@@ -33,7 +41,9 @@ class CoreGrpcClient:
     try
       val stub    = CoordinatorServiceGrpc.newBlockingStub(getChannel(host, port))
       val request = BatchResubscribeRequest.newBuilder().addAllGameIds(gameIds.asJava).build()
-      stub.batchResubscribeGames(request).getSubscribedCount
+      val count   = stub.batchResubscribeGames(request).getSubscribedCount
+      log.debugf("batchResubscribeGames %s:%d — subscribed %d games", host, port, count)
+      count
     catch
       case ex: Exception =>
         log.warnf(ex, "batchResubscribeGames RPC failed for %s:%d", host, port)
@@ -44,7 +54,9 @@ class CoreGrpcClient:
     try
       val stub    = CoordinatorServiceGrpc.newBlockingStub(getChannel(host, port))
       val request = UnsubscribeGamesRequest.newBuilder().addAllGameIds(gameIds.asJava).build()
-      stub.unsubscribeGames(request).getUnsubscribedCount
+      val count   = stub.unsubscribeGames(request).getUnsubscribedCount
+      log.debugf("unsubscribeGames %s:%d — unsubscribed %d games", host, port, count)
+      count
     catch
       case ex: Exception =>
         log.warnf(ex, "unsubscribeGames RPC failed for %s:%d", host, port)
@@ -55,7 +67,9 @@ class CoreGrpcClient:
     try
       val stub    = CoordinatorServiceGrpc.newBlockingStub(getChannel(host, port))
       val request = EvictGamesRequest.newBuilder().addAllGameIds(gameIds.asJava).build()
-      stub.evictGames(request).getEvictedCount
+      val count   = stub.evictGames(request).getEvictedCount
+      log.debugf("evictGames %s:%d — evicted %d games", host, port, count)
+      count
     catch
       case ex: Exception =>
         log.warnf(ex, "evictGames RPC failed for %s:%d", host, port)

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

@@ -30,14 +30,15 @@ class AutoScaler:
     if kubeClientInstance.isUnsatisfied then None
     else Some(kubeClientInstance.get())
 
+  private val argoApiVersion = "argoproj.io/v1alpha1"
+  private val argoKind       = "Rollout"
+
   // scalafix:off DisableSyntax.asInstanceOf
-  // scalafix:off DisableSyntax.isInstanceOf
   private def rolloutSpec(rollout: GenericKubernetesResource): Option[java.util.Map[String, AnyRef]] =
-    Option(rollout.get("spec")).collect {
+    Option(rollout.get[AnyRef]("spec")).collect { case m: java.util.Map[?, ?] =>
-      case m if m.isInstanceOf[java.util.Map[?, ?]] => m.asInstanceOf[java.util.Map[String, AnyRef]]
+      m.asInstanceOf[java.util.Map[String, AnyRef]]
     }
   // scalafix:on DisableSyntax.asInstanceOf
-  // scalafix:on DisableSyntax.isInstanceOf
 
   def checkAndScale: Unit =
     if config.autoScaleEnabled then
@@ -61,7 +62,7 @@ class AutoScaler:
         try
           Option(
             kube
-              .resources(classOf[GenericKubernetesResource])
+              .genericKubernetesResources(argoApiVersion, argoKind)
               .inNamespace(config.k8sNamespace)
               .withName(config.k8sRolloutName)
               .get(),
@@ -102,7 +103,7 @@ class AutoScaler:
         try
           Option(
             kube
-              .resources(classOf[GenericKubernetesResource])
+              .genericKubernetesResources(argoApiVersion, argoKind)
               .inNamespace(config.k8sNamespace)
               .withName(config.k8sRolloutName)
               .get(),

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

@@ -9,6 +9,7 @@ import com.fasterxml.jackson.databind.ObjectMapper
 import de.nowchess.coordinator.dto.InstanceMetadata
 import java.util.concurrent.ConcurrentHashMap
 import io.smallrye.mutiny.Uni
+import org.jboss.logging.Logger
 
 @ApplicationScoped
 class InstanceRegistry:
@@ -18,6 +19,7 @@ class InstanceRegistry:
   private var redisPrefix                    = "nowchess"
   // scalafix:on DisableSyntax.var
 
+  private val log       = Logger.getLogger(classOf[InstanceRegistry])
   private val mapper    = ObjectMapper()
   private val instances = ConcurrentHashMap[String, InstanceMetadata]()
 
@@ -39,17 +41,30 @@ class InstanceRegistry:
       .transformToUni { value =>
         try
           val metadata = mapper.readValue(value, classOf[InstanceMetadata])
+          val isNew    = !instances.containsKey(instanceId)
           instances.put(instanceId, metadata)
+          if isNew then
+            log.infof("Instance %s joined registry (subscriptions=%d)", instanceId, metadata.subscriptionCount)
+          else
+            log.debugf(
+              "Instance %s updated (subscriptions=%d state=%s)",
+              instanceId,
+              metadata.subscriptionCount,
+              metadata.state,
+            )
           Uni.createFrom().item(())
-        catch case _: Exception => Uni.createFrom().item(())
+        catch
+          case ex: Exception =>
+            log.warnf(ex, "Failed to parse instance metadata for %s", instanceId)
+            Uni.createFrom().item(())
       }
       .onFailure()
       .recoverWithItem(())
 
   def markInstanceDead(instanceId: String): Unit =
     instances.computeIfPresent(instanceId, (_, inst) => inst.copy(state = "DEAD"))
-    ()
+    log.infof("Instance %s marked dead", instanceId)
 
   def removeInstance(instanceId: String): Unit =
     instances.remove(instanceId)
-    ()
+    log.infof("Instance %s removed from registry", instanceId)

modules/coordinator/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=10
 PATCH=0

modules/core/CHANGELOG.md

@@ -602,3 +602,198 @@
 * IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
 * 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))
+##  (2026-05-01)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **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))
+* 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))
+* 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-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* 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))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* 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))
+##  (2026-05-02)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **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))
+* 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))
+* **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-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* 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))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* 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))
+##  (2026-05-02)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **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))
+* 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))
+* **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-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* 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))
+* 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))
+* 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))
+##  (2026-05-05)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **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))
+* 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))
+* **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-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **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))
+* 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))
+##  (2026-05-05)
+
+### Features
+
+* add GameRules stub with PositionStatus enum ([76d4168](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/76d4168038de23e5d6083d4e8f0504fbf31d15a3))
+* add MovedInCheck/Checkmate/Stalemate MoveResult variants (stub dispatch) ([8b7ec57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/8b7ec57e5ea6ee1615a1883848a426dc07d26364))
+* **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))
+* 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))
+* **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-9 En passant implementation ([#8](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/8)) ([919beb3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/919beb3b4bfa8caf2f90976a415fe9b19b7e9747))
+* **rule:** Rules as a microservice ([#39](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/39)) ([093134d](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/093134d36c6844ba02a36a28d5d044f09291cd1d))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+* wire check/checkmate/stalemate into processMove and gameLoop ([5264a22](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5264a225418b885c5e6ea6411b96f85e38837f6c))
+
+### Bug Fixes
+
+* add missing kings to gameLoop capture test board ([aedd787](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/aedd787b77203c2af934751dba7b784eaf165032))
+* **auth:** change InternalAuthFilter to use @Singleton and add HTTP tests for secret validation ([c08d530](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/c08d5303eb9e70d36c8eebf6a061ccb71e118fe5))
+* **auth:** update InternalAuthFilter to use @ApplicationScoped and add index-dependency configuration ([6e0fd95](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6e0fd9523e001756ce7109e639ebb54be4fcdabf))
+* correct test board positions and captureOutput/withInput interaction ([f0481e2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/f0481e2561b779df00925b46ee281dc36a795150))
+* **heartbeat:** inject ObjectMapper into InstanceHeartbeatService ([#42](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/42)) ([0c98151](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/0c981517da1f94cd10ae396e47bde2b35d0b3ba0))
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+* Lints ([dc224ab](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dc224abe26acf5361c56956006e1cc51b75b0b7e))
+* **redis:** add max pool wait time and switch to ReactiveRedisDataSource for heartbeat updates ([33e5017](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/33e5017f51a998327b180f778f73964cc10c05d3))
+* **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))
+* 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))

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

@@ -3,8 +3,15 @@ quarkus:
     port: 8080
   application:
     name: nowchess-core
+  index-dependency:
+    security:
+      group-id: de.nowchess
+      artifact-id: security
   redis:
     hosts: redis://${REDIS_HOST:localhost}:${REDIS_PORT:6379}
+    max-pool-wait-time: 30s
+    max-pool-size: 64
+    max-pool-waiting: 128
   grpc:
     clients:
       rule-grpc:

modules/core/src/main/scala/de/nowchess/chess/grpc/CoordinatorServiceHandler.scala

@@ -7,11 +7,15 @@ import scala.compiletime.uninitialized
 import de.nowchess.coordinator.proto.{CoordinatorServiceGrpc, *}
 import de.nowchess.chess.redis.GameRedisSubscriberManager
 import io.grpc.stub.StreamObserver
+import org.jboss.logging.Logger
 import scala.jdk.CollectionConverters.*
 
 @GrpcService
 @Singleton
 class CoordinatorServiceHandler extends CoordinatorServiceGrpc.CoordinatorServiceImplBase:
+
+  private val log = Logger.getLogger(classOf[CoordinatorServiceHandler])
+
   // scalafix:off DisableSyntax.var
   @Inject
   private var gameSubscriberManager: GameRedisSubscriberManager = uninitialized
@@ -22,6 +26,7 @@ class CoordinatorServiceHandler extends CoordinatorServiceGrpc.CoordinatorServic
       responseObserver: StreamObserver[BatchResubscribeResponse],
   ): Unit =
     val count = gameSubscriberManager.batchResubscribeGames(request.getGameIdsList)
+    log.infof("Coordinator: batch resubscribe %d games → subscribed %d", request.getGameIdsList.size(), count)
     val response = BatchResubscribeResponse
       .newBuilder()
       .setSubscribedCount(count)
@@ -34,6 +39,7 @@ class CoordinatorServiceHandler extends CoordinatorServiceGrpc.CoordinatorServic
       responseObserver: StreamObserver[UnsubscribeGamesResponse],
   ): Unit =
     val count = gameSubscriberManager.unsubscribeGames(request.getGameIdsList)
+    log.infof("Coordinator: unsubscribe %d games → unsubscribed %d", request.getGameIdsList.size(), count)
     val response = UnsubscribeGamesResponse
       .newBuilder()
       .setUnsubscribedCount(count)
@@ -46,6 +52,7 @@ class CoordinatorServiceHandler extends CoordinatorServiceGrpc.CoordinatorServic
       responseObserver: StreamObserver[EvictGamesResponse],
   ): Unit =
     val count = gameSubscriberManager.evictGames(request.getGameIdsList)
+    log.infof("Coordinator: evict %d games → evicted %d", request.getGameIdsList.size(), count)
     val response = EvictGamesResponse
       .newBuilder()
       .setEvictedCount(count)
@@ -58,6 +65,7 @@ class CoordinatorServiceHandler extends CoordinatorServiceGrpc.CoordinatorServic
       responseObserver: StreamObserver[DrainInstanceResponse],
   ): Unit =
     val migrated = gameSubscriberManager.drainInstance()
+    log.infof("Coordinator: drain instance → migrated %d games", migrated)
     val response = DrainInstanceResponse
       .newBuilder()
       .setGamesMigrated(migrated)

modules/core/src/main/scala/de/nowchess/chess/grpc/IoGrpcClientWrapper.scala

@@ -5,29 +5,63 @@ import de.nowchess.chess.client.CombinedExportResponse
 import de.nowchess.core.proto.*
 import io.quarkus.grpc.GrpcClient
 import jakarta.enterprise.context.ApplicationScoped
+import org.jboss.logging.Logger
 
 import scala.compiletime.uninitialized
 
 @ApplicationScoped
 class IoGrpcClientWrapper:
 
+  private val log = Logger.getLogger(classOf[IoGrpcClientWrapper])
+
   // scalafix:off DisableSyntax.var
   @GrpcClient("io-grpc")
   var stub: IoServiceGrpc.IoServiceBlockingStub = uninitialized
   // scalafix:on DisableSyntax.var
 
   def exportCombined(ctx: GameContext): CombinedExportResponse =
-    val combined = stub.exportCombined(CoreProtoMapper.toProtoGameContext(ctx))
+    try
-    CombinedExportResponse(combined.getFen, combined.getPgn)
+      val combined = stub.exportCombined(CoreProtoMapper.toProtoGameContext(ctx))
+      CombinedExportResponse(combined.getFen, combined.getPgn)
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "IO gRPC exportCombined failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def importFen(fen: String): GameContext =
-    CoreProtoMapper.fromProtoGameContext(stub.importFen(ProtoImportFenRequest.newBuilder().setFen(fen).build()))
+    try CoreProtoMapper.fromProtoGameContext(stub.importFen(ProtoImportFenRequest.newBuilder().setFen(fen).build()))
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "IO gRPC importFen failed for fen %s", fen)
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def importPgn(pgn: String): GameContext =
-    CoreProtoMapper.fromProtoGameContext(stub.importPgn(ProtoImportPgnRequest.newBuilder().setPgn(pgn).build()))
+    try CoreProtoMapper.fromProtoGameContext(stub.importPgn(ProtoImportPgnRequest.newBuilder().setPgn(pgn).build()))
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "IO gRPC importPgn failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def exportFen(ctx: GameContext): String =
-    stub.exportFen(CoreProtoMapper.toProtoGameContext(ctx)).getValue
+    try stub.exportFen(CoreProtoMapper.toProtoGameContext(ctx)).getValue
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "IO gRPC exportFen failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def exportPgn(ctx: GameContext): String =
-    stub.exportPgn(CoreProtoMapper.toProtoGameContext(ctx)).getValue
+    try stub.exportPgn(CoreProtoMapper.toProtoGameContext(ctx)).getValue
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "IO gRPC exportPgn failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw

modules/core/src/main/scala/de/nowchess/chess/grpc/RuleSetGrpcAdapter.scala

@@ -7,6 +7,7 @@ import de.nowchess.api.rules.{PostMoveStatus, RuleSet}
 import de.nowchess.core.proto.*
 import io.quarkus.grpc.GrpcClient
 import jakarta.enterprise.context.ApplicationScoped
+import org.jboss.logging.Logger
 
 import scala.compiletime.uninitialized
 import scala.jdk.CollectionConverters.*
@@ -14,28 +15,59 @@ import scala.jdk.CollectionConverters.*
 @ApplicationScoped
 class RuleSetGrpcAdapter extends RuleSet:
 
+  private val log = Logger.getLogger(classOf[RuleSetGrpcAdapter])
+
   // scalafix:off DisableSyntax.var
   @GrpcClient("rule-grpc")
   var stub: RuleServiceGrpc.RuleServiceBlockingStub = uninitialized
   // scalafix:on DisableSyntax.var
 
   def candidateMoves(ctx: GameContext)(sq: Square): List[Move] =
-    val req =
+    try
-      ProtoSquareRequest.newBuilder().setContext(CoreProtoMapper.toProtoGameContext(ctx)).setSquare(sq.toString).build()
+      val req =
-    stub.candidateMoves(req).getMovesList.asScala.flatMap(CoreProtoMapper.fromProtoMove).toList
+        ProtoSquareRequest
+          .newBuilder()
+          .setContext(CoreProtoMapper.toProtoGameContext(ctx))
+          .setSquare(sq.toString)
+          .build()
+      stub.candidateMoves(req).getMovesList.asScala.flatMap(CoreProtoMapper.fromProtoMove).toList
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "Rule gRPC candidateMoves failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def legalMoves(ctx: GameContext)(sq: Square): List[Move] =
-    val req =
+    try
-      ProtoSquareRequest.newBuilder().setContext(CoreProtoMapper.toProtoGameContext(ctx)).setSquare(sq.toString).build()
+      val req =
-    stub.legalMoves(req).getMovesList.asScala.flatMap(CoreProtoMapper.fromProtoMove).toList
+        ProtoSquareRequest
+          .newBuilder()
+          .setContext(CoreProtoMapper.toProtoGameContext(ctx))
+          .setSquare(sq.toString)
+          .build()
+      stub.legalMoves(req).getMovesList.asScala.flatMap(CoreProtoMapper.fromProtoMove).toList
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "Rule gRPC legalMoves failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def allLegalMoves(ctx: GameContext): List[Move] =
-    stub
+    try
-      .allLegalMoves(CoreProtoMapper.toProtoGameContext(ctx))
+      stub
-      .getMovesList
+        .allLegalMoves(CoreProtoMapper.toProtoGameContext(ctx))
-      .asScala
+        .getMovesList
-      .flatMap(CoreProtoMapper.fromProtoMove)
+        .asScala
-      .toList
+        .flatMap(CoreProtoMapper.fromProtoMove)
+        .toList
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "Rule gRPC allLegalMoves failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   def isCheck(ctx: GameContext): Boolean =
     stub.isCheck(CoreProtoMapper.toProtoGameContext(ctx)).getValue
@@ -56,19 +88,33 @@ class RuleSetGrpcAdapter extends RuleSet:
     stub.isThreefoldRepetition(CoreProtoMapper.toProtoGameContext(ctx)).getValue
 
   def applyMove(ctx: GameContext)(move: Move): GameContext =
-    val req = ProtoMoveRequest
+    try
-      .newBuilder()
+      val req = ProtoMoveRequest
-      .setContext(CoreProtoMapper.toProtoGameContext(ctx))
+        .newBuilder()
-      .setMove(CoreProtoMapper.toProtoMove(move))
+        .setContext(CoreProtoMapper.toProtoGameContext(ctx))
-      .build()
+        .setMove(CoreProtoMapper.toProtoMove(move))
-    CoreProtoMapper.fromProtoGameContext(stub.applyMove(req))
+        .build()
+      CoreProtoMapper.fromProtoGameContext(stub.applyMove(req))
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "Rule gRPC applyMove failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw
 
   override def postMoveStatus(ctx: GameContext): PostMoveStatus =
-    val p = stub.postMoveStatus(CoreProtoMapper.toProtoGameContext(ctx))
+    try
-    PostMoveStatus(
+      val p = stub.postMoveStatus(CoreProtoMapper.toProtoGameContext(ctx))
-      p.getIsCheckmate,
+      PostMoveStatus(
-      p.getIsStalemate,
+        p.getIsCheckmate,
-      p.getIsInsufficientMaterial,
+        p.getIsStalemate,
-      p.getIsCheck,
+        p.getIsInsufficientMaterial,
-      p.getIsThreefoldRepetition,
+        p.getIsCheck,
-    )
+        p.getIsThreefoldRepetition,
+      )
+    catch
+      case ex: Exception =>
+        log.warnf(ex, "Rule gRPC postMoveStatus failed")
+        // scalafix:off DisableSyntax.throw
+        throw ex
+      // scalafix:on DisableSyntax.throw

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

@@ -10,6 +10,10 @@ import de.nowchess.chess.observer.{GameEvent, Observer}
 import de.nowchess.chess.registry.GameRegistry
 import de.nowchess.chess.resource.GameDtoMapper
 import io.quarkus.redis.datasource.RedisDataSource
+import org.jboss.logging.Logger
+
+object GameRedisPublisher:
+  private val log = Logger.getLogger(classOf[GameRedisPublisher])
 
 class GameRedisPublisher(
     gameId: String,
@@ -23,57 +27,60 @@ class GameRedisPublisher(
 ) extends Observer:
 
   def onGameEvent(event: GameEvent): Unit =
-    registry.get(gameId).foreach { entry =>
+    try
-      val dto  = GameDtoMapper.toGameStateDto(entry, ioClient)
+      GameRedisPublisher.log.debugf("Publishing game event for game %s", gameId)
-      val json = objectMapper.writeValueAsString(GameStateEventDto(dto))
+      registry.get(gameId).foreach { entry =>
-      redis.pubsub(classOf[String]).publish(s2cTopicName, json)
+        val dto  = GameDtoMapper.toGameStateDto(entry, ioClient)
+        val json = objectMapper.writeValueAsString(GameStateEventDto(dto))
+        redis.pubsub(classOf[String]).publish(s2cTopicName, json)
 
-      val clock = entry.engine.currentClockState
+        val clock = entry.engine.currentClockState
-      val wb = GameWritebackEventDto(
+        val wb = GameWritebackEventDto(
-        gameId = gameId,
+          gameId = gameId,
-        fen = dto.fen,
+          fen = dto.fen,
-        pgn = dto.pgn,
+          pgn = dto.pgn,
-        moveCount = entry.engine.context.moves.size,
+          moveCount = entry.engine.context.moves.size,
-        whiteId = entry.white.id.value,
+          whiteId = entry.white.id.value,
-        whiteName = entry.white.displayName,
+          whiteName = entry.white.displayName,
-        blackId = entry.black.id.value,
+          blackId = entry.black.id.value,
-        blackName = entry.black.displayName,
+          blackName = entry.black.displayName,
-        mode = entry.mode.toString,
+          mode = entry.mode.toString,
-        resigned = entry.resigned,
+          resigned = entry.resigned,
-        limitSeconds = entry.engine.timeControl match {
+          limitSeconds = entry.engine.timeControl match {
-          case de.nowchess.api.game.TimeControl.Clock(l, _) => Some(l); case _ => None
+            case de.nowchess.api.game.TimeControl.Clock(l, _) => Some(l); case _ => None
-        },
+          },
-        incrementSeconds = entry.engine.timeControl match {
+          incrementSeconds = entry.engine.timeControl match {
-          case de.nowchess.api.game.TimeControl.Clock(_, i) => Some(i); case _ => None
+            case de.nowchess.api.game.TimeControl.Clock(_, i) => Some(i); case _ => None
-        },
+          },
-        daysPerMove = entry.engine.timeControl match {
+          daysPerMove = entry.engine.timeControl match {
-          case de.nowchess.api.game.TimeControl.Correspondence(d) => Some(d); case _ => None
+            case de.nowchess.api.game.TimeControl.Correspondence(d) => Some(d); case _ => None
-        },
+          },
-        whiteRemainingMs = clock.collect { case c: LiveClockState => c.whiteRemainingMs },
+          whiteRemainingMs = clock.collect { case c: LiveClockState => c.whiteRemainingMs },
-        blackRemainingMs = clock.collect { case c: LiveClockState => c.blackRemainingMs },
+          blackRemainingMs = clock.collect { case c: LiveClockState => c.blackRemainingMs },
-        incrementMs = clock.collect { case c: LiveClockState => c.incrementMs },
+          incrementMs = clock.collect { case c: LiveClockState => c.incrementMs },
-        clockLastTickAt = clock.collect { case c: LiveClockState => c.lastTickAt.toEpochMilli },
+          clockLastTickAt = clock.collect { case c: LiveClockState => c.lastTickAt.toEpochMilli },
-        clockMoveDeadline = clock.collect { case c: CorrespondenceClockState => c.moveDeadline.toEpochMilli },
+          clockMoveDeadline = clock.collect { case c: CorrespondenceClockState => c.moveDeadline.toEpochMilli },
-        clockActiveColor = clock.map(_.activeColor.label.toLowerCase),
+          clockActiveColor = clock.map(_.activeColor.label.toLowerCase),
-        pendingDrawOffer = entry.engine.pendingDrawOfferBy.map(_.label.toLowerCase),
+          pendingDrawOffer = entry.engine.pendingDrawOfferBy.map(_.label.toLowerCase),
-        result = entry.engine.context.result.map {
+          result = entry.engine.context.result.map {
-          case GameResult.Win(Color.White, _) => "white"
+            case GameResult.Win(Color.White, _) => "white"
-          case GameResult.Win(Color.Black, _) => "black"
+            case GameResult.Win(Color.Black, _) => "black"
-          case GameResult.Draw(_)             => "draw"
+            case GameResult.Draw(_)             => "draw"
-        },
+          },
-        terminationReason = entry.engine.context.result.map {
+          terminationReason = entry.engine.context.result.map {
-          case GameResult.Win(_, WinReason.Checkmate)           => "checkmate"
+            case GameResult.Win(_, WinReason.Checkmate)           => "checkmate"
-          case GameResult.Win(_, WinReason.Resignation)         => "resignation"
+            case GameResult.Win(_, WinReason.Resignation)         => "resignation"
-          case GameResult.Win(_, WinReason.TimeControl)         => "timeout"
+            case GameResult.Win(_, WinReason.TimeControl)         => "timeout"
-          case GameResult.Draw(DrawReason.Stalemate)            => "stalemate"
+            case GameResult.Draw(DrawReason.Stalemate)            => "stalemate"
-          case GameResult.Draw(DrawReason.InsufficientMaterial) => "insufficient_material"
+            case GameResult.Draw(DrawReason.InsufficientMaterial) => "insufficient_material"
-          case GameResult.Draw(DrawReason.FiftyMoveRule)        => "fifty_move"
+            case GameResult.Draw(DrawReason.FiftyMoveRule)        => "fifty_move"
-          case GameResult.Draw(DrawReason.ThreefoldRepetition)  => "repetition"
+            case GameResult.Draw(DrawReason.ThreefoldRepetition)  => "repetition"
-          case GameResult.Draw(DrawReason.Agreement)            => "agreement"
+            case GameResult.Draw(DrawReason.Agreement)            => "agreement"
-        },
+          },
-        redoStack = entry.engine.redoStackMoves.map(GameDtoMapper.moveToUci),
+          redoStack = entry.engine.redoStackMoves.map(GameDtoMapper.moveToUci),
-        pendingTakebackRequest = entry.engine.pendingTakebackRequestBy.map(_.label.toLowerCase),
+          pendingTakebackRequest = entry.engine.pendingTakebackRequestBy.map(_.label.toLowerCase),
-      )
+        )
-      writebackEmit(objectMapper.writeValueAsString(wb))
+        writebackEmit(objectMapper.writeValueAsString(wb))
-      if entry.engine.context.result.isDefined then onGameOver(gameId)
+        if entry.engine.context.result.isDefined then onGameOver(gameId)
-    }
+      }
+    catch case ex: Exception => GameRedisPublisher.log.warnf(ex, "Failed to publish game event for game %s", gameId)

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

@@ -10,12 +10,14 @@ import de.nowchess.chess.observer.Observer
 import de.nowchess.chess.registry.GameRegistry
 import de.nowchess.chess.resource.GameDtoMapper
 import de.nowchess.chess.service.InstanceHeartbeatService
+import io.quarkus.redis.datasource.ReactiveRedisDataSource
 import io.quarkus.redis.datasource.RedisDataSource
-import io.quarkus.redis.datasource.pubsub.PubSubCommands
+import io.quarkus.redis.datasource.pubsub.ReactivePubSubCommands
 import jakarta.annotation.PreDestroy
 import jakarta.enterprise.context.ApplicationScoped
 import jakarta.enterprise.inject.Instance
 import jakarta.inject.Inject
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import scala.util.Try
 import java.util.concurrent.ConcurrentHashMap
@@ -24,8 +26,11 @@ import java.util.function.Consumer
 @ApplicationScoped
 class GameRedisSubscriberManager:
 
+  private val log = Logger.getLogger(classOf[GameRedisSubscriberManager])
+
   // scalafix:off DisableSyntax.var
   @Inject var redis: RedisDataSource                                       = uninitialized
+  @Inject var reactiveRedis: ReactiveRedisDataSource                       = uninitialized
   @Inject var registry: GameRegistry                                       = uninitialized
   @Inject var objectMapper: ObjectMapper                                   = uninitialized
   @Inject var redisConfig: RedisConfig                                     = uninitialized
@@ -37,7 +42,7 @@ class GameRedisSubscriberManager:
     if heartbeatServiceInstance.isUnsatisfied then None
     else Some(heartbeatServiceInstance.get())
 
-  private val c2sListeners = new ConcurrentHashMap[String, PubSubCommands.RedisSubscriber]()
+  private val c2sListeners = new ConcurrentHashMap[String, ReactivePubSubCommands.ReactiveRedisSubscriber]()
   private val s2cObservers = new ConcurrentHashMap[String, Observer]()
 
   private def c2sTopic(gameId: String): String =
@@ -47,40 +52,44 @@ class GameRedisSubscriberManager:
     s"${redisConfig.prefix}:game:$gameId:s2c"
 
   def subscribeGame(gameId: String): Unit =
-    try
+    val writebackFn: String => Unit = json => redis.pubsub(classOf[String]).publish("game-writeback", json)
-      val handler: Consumer[String] = msg => handleC2sMessage(gameId, msg)
+    val obs = new GameRedisPublisher(
-      val subscriber                = redis.pubsub(classOf[String]).subscribe(c2sTopic(gameId), handler)
+      gameId,
-      c2sListeners.put(gameId, subscriber)
+      registry,
+      redis,
+      objectMapper,
+      s2cTopicName(gameId),
+      writebackFn,
+      ioClient,
+      unsubscribeGame,
+    )
+    s2cObservers.put(gameId, obs)
+    registry.get(gameId).foreach(_.engine.subscribe(obs))
+    heartbeatServiceOpt.foreach(_.addGameSubscription(gameId))
 
-      val writebackFn: String => Unit = json => redis.pubsub(classOf[String]).publish("game-writeback", json)
+    val handler: Consumer[String] = msg => handleC2sMessage(gameId, msg)
-      val obs = new GameRedisPublisher(
+    reactiveRedis
-        gameId,
+      .pubsub(classOf[String])
-        registry,
+      .subscribe(c2sTopic(gameId), handler)
-        redis,
+      .subscribe()
-        objectMapper,
+      .`with`(
-        s2cTopicName(gameId),
+        subscriber => {
-        writebackFn,
+          c2sListeners.put(gameId, subscriber)
-        ioClient,
+          log.debugf("Subscribed to game %s", gameId)
-        unsubscribeGame,
+        },
+        failure => log.warnf(failure, "Redis subscription failed for game %s", gameId),
       )
-      s2cObservers.put(gameId, obs)
-      registry.get(gameId).foreach(_.engine.subscribe(obs))
-
-      heartbeatServiceOpt.foreach(_.addGameSubscription(gameId))
-    catch
-      case e: Exception =>
-        System.err.println(s"Warning: Redis subscription failed for game $gameId: ${e.getMessage}")
-        ()
 
   def unsubscribeGame(gameId: String): Unit =
     Option(c2sListeners.remove(gameId)).foreach { subscriber =>
-      subscriber.unsubscribe(c2sTopic(gameId))
+      subscriber.unsubscribe(c2sTopic(gameId)).subscribe().`with`(_ => (), _ => ())
     }
     Option(s2cObservers.remove(gameId)).foreach { obs =>
       registry.get(gameId).foreach(_.engine.unsubscribe(obs))
     }
 
     heartbeatServiceOpt.foreach(_.removeGameSubscription(gameId))
+    log.debugf("Unsubscribed from game %s", gameId)
 
   private def handleC2sMessage(gameId: String, msg: String): Unit =
     parseC2sMessage(msg) match
@@ -97,6 +106,7 @@ class GameRedisSubscriberManager:
     }
 
   private def handleMove(gameId: String, uci: String, playerId: Option[String]): Unit =
+    log.debugf("Processing move %s for game %s by player %s", uci, gameId, playerId.getOrElse("anonymous"))
     registry.get(gameId).foreach { entry =>
       entry.mode match
         case GameMode.Open => entry.engine.processUserInput(uci)
@@ -127,6 +137,7 @@ class GameRedisSubscriberManager:
 
   def batchResubscribeGames(gameIds: java.util.List[String]): Int =
     gameIds.forEach(subscribeGame)
+    log.infof("Batch resubscribed %d games", gameIds.size())
     gameIds.size()
 
   def unsubscribeGames(gameIds: java.util.List[String]): Int =
@@ -135,15 +146,17 @@ class GameRedisSubscriberManager:
 
   def evictGames(gameIds: java.util.List[String]): Int =
     gameIds.forEach(unsubscribeGame)
+    log.infof("Evicting %d games", gameIds.size())
     gameIds.size()
 
   def drainInstance(): Int =
     val gameIds = new java.util.ArrayList(c2sListeners.keySet())
     val count   = gameIds.size()
     gameIds.forEach(unsubscribeGame)
+    log.infof("Draining instance, unsubscribing %d games", count)
     count
 
   @PreDestroy
   def cleanup(): Unit =
-    c2sListeners.forEach((gameId, subscriber) => subscriber.unsubscribe(c2sTopic(gameId)))
+    c2sListeners.forEach((gameId, subscriber) => subscriber.unsubscribe(c2sTopic(gameId)).await().indefinitely())
     s2cObservers.forEach((gameId, obs) => registry.get(gameId).foreach(_.engine.unsubscribe(obs)))

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

@@ -17,6 +17,7 @@ import jakarta.enterprise.context.ApplicationScoped
 import jakarta.inject.Inject
 import org.eclipse.microprofile.rest.client.inject.RestClient
 import scala.compiletime.uninitialized
+import org.jboss.logging.Logger
 import scala.util.Try
 import java.nio.charset.StandardCharsets
 import java.security.{MessageDigest, SecureRandom}
@@ -35,6 +36,7 @@ class RedisGameRegistry extends GameRegistry:
   @Inject @RestClient var storeClient: StoreServiceClient = uninitialized
   // scalafix:on
 
+  private val log          = Logger.getLogger(classOf[RedisGameRegistry])
   private val localEngines = ConcurrentHashMap[String, GameEntry]()
   private val rng          = new SecureRandom()
 
@@ -48,6 +50,12 @@ class RedisGameRegistry extends GameRegistry:
     localEngines.put(entry.gameId, entry)
     val combined = ioClient.exportCombined(entry.engine.context)
     redis.value(classOf[String]).setex(cacheKey(entry.gameId), 1800L, toJson(entry, combined.fen, combined.pgn))
+    log.infof(
+      "Stored game %s in registry (white=%s black=%s)",
+      entry.gameId,
+      entry.white.displayName,
+      entry.black.displayName,
+    )
 
   def get(gameId: String): Option[GameEntry] =
     Option(localEngines.get(gameId)) match
@@ -71,9 +79,15 @@ class RedisGameRegistry extends GameRegistry:
 
   private def fromRedis(gameId: String): Option[GameEntry] =
     readRedisDto(gameId)
-      .flatMap(dto => Try(reconstruct(dto)).toOption)
+      .flatMap { dto =>
+        Try(reconstruct(dto)).toOption.orElse {
+          log.warnf("Failed to reconstruct game %s from Redis", gameId)
+          None
+        }
+      }
       .map { entry =>
         localEngines.put(gameId, entry)
+        log.infof("Loaded game %s from Redis cache", gameId)
         entry
       }
 
@@ -102,12 +116,15 @@ class RedisGameRegistry extends GameRegistry:
         pendingDrawOffer = Option(record.pendingDrawOffer),
       )
       (dto, reconstruct(dto))
-    }.toOption
+    } match
-      .map { case (dto, entry) =>
+      case scala.util.Success((dto, entry)) =>
+        log.infof("Loaded game %s from store service", gameId)
         localEngines.put(gameId, entry)
         redis.value(classOf[String]).setex(cacheKey(gameId), 1800L, objectMapper.writeValueAsString(dto))
-        entry
+        Some(entry)
-      }
+      case scala.util.Failure(ex) =>
+        log.warnf(ex, "Failed to load game %s from store service", gameId)
+        None
 
   private def reconstruct(dto: GameCacheDto): GameEntry =
     val ctx = if dto.pgn.nonEmpty then ioClient.importPgn(dto.pgn) else GameContext.initial

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

@@ -30,6 +30,7 @@ import jakarta.inject.Inject
 import jakarta.ws.rs.*
 import jakarta.ws.rs.core.{MediaType, Response}
 import org.eclipse.microprofile.jwt.JsonWebToken
+import org.jboss.logging.Logger
 
 import java.util.concurrent.atomic.AtomicReference
 import scala.compiletime.uninitialized
@@ -38,6 +39,8 @@ import scala.compiletime.uninitialized
 @ApplicationScoped
 class GameResource:
 
+  private val log = Logger.getLogger(classOf[GameResource])
+
   // scalafix:off DisableSyntax.var
   @Inject
   var registry: GameRegistry = uninitialized
@@ -165,7 +168,13 @@ class GameResource:
     val entry = newEntry(GameContext.initial, white, black, tc, mode)
     registry.store(entry)
     subscriberManager.subscribeGame(entry.gameId)
-    println(s"Created game ${entry.gameId}")
+    log.infof(
+      "Game %s created — white=%s black=%s mode=%s",
+      entry.gameId,
+      white.displayName,
+      black.displayName,
+      mode.toString,
+    )
     created(GameDtoMapper.toGameFullDto(entry, ioClient))
 
   @GET
@@ -182,6 +191,7 @@ class GameResource:
     val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
     assertGameNotOver(entry)
     val color = colorOf(entry)
+    log.infof("Game %s — resign by %s", gameId, color.label)
     entry.engine.resign(color)
     registry.update(entry.copy(resigned = true))
     ok(OkResponseDto())
@@ -194,6 +204,7 @@ class GameResource:
     val entry = registry.get(gameId).getOrElse(throw GameNotFoundException(gameId))
     assertGameNotOver(entry)
     assertIsCurrentPlayer(entry)
+    log.debugf("Game %s — move %s by %s", gameId, uci, colorOf(entry).label)
     if Parser.parseMove(uci).isEmpty then
       throw BadRequestException("INVALID_UCI", s"Invalid UCI notation: $uci", Some("uci"))
     applyMoveInput(entry.engine, uci).foreach(err => throw BadRequestException("INVALID_MOVE", err, Some("uci")))
@@ -284,6 +295,7 @@ class GameResource:
     val entry = newEntry(ctx, white, black, tc)
     registry.store(entry)
     subscriberManager.subscribeGame(entry.gameId)
+    log.infof("Imported FEN game %s", entry.gameId)
     created(GameDtoMapper.toGameFullDto(entry, ioClient))
 
   @POST
@@ -295,6 +307,7 @@ class GameResource:
     val entry = newEntry(ctx, DefaultWhite, DefaultBlack)
     registry.store(entry)
     subscriberManager.subscribeGame(entry.gameId)
+    log.infof("Imported PGN game %s", entry.gameId)
     created(GameDtoMapper.toGameFullDto(entry, ioClient))
 
   @GET

modules/core/src/main/scala/de/nowchess/chess/service/InstanceHeartbeatService.scala

@@ -8,8 +8,10 @@ import io.quarkus.runtime.ShutdownEvent
 import io.quarkus.grpc.GrpcClient
 import org.eclipse.microprofile.config.inject.ConfigProperty
 import io.quarkus.redis.datasource.RedisDataSource
+import io.quarkus.redis.datasource.ReactiveRedisDataSource
 import scala.compiletime.uninitialized
 import java.util.concurrent.{Executors, TimeUnit}
+import java.util.concurrent.atomic.AtomicBoolean
 import java.net.InetAddress
 import com.fasterxml.jackson.databind.ObjectMapper
 import org.jboss.logging.Logger
@@ -24,6 +26,12 @@ class InstanceHeartbeatService:
   @Inject
   private var redis: RedisDataSource = uninitialized
 
+  @Inject
+  private var reactiveRedis: ReactiveRedisDataSource = uninitialized
+
+  @Inject
+  private var mapper: ObjectMapper = uninitialized
+
   @GrpcClient("coordinator-grpc")
   private var channel: Channel = uninitialized
 
@@ -38,7 +46,6 @@ class InstanceHeartbeatService:
 
   private var coordinatorStub: CoordinatorServiceStub = uninitialized
   private val log                                     = Logger.getLogger(classOf[InstanceHeartbeatService])
-  private val mapper                                  = ObjectMapper()
   private var instanceId                              = ""
   private var redisPrefix                             = "nowchess"
   private var streamObserver: Option[StreamObserver[HeartbeatFrame]] = None
@@ -49,6 +56,7 @@ class InstanceHeartbeatService:
   private var serviceActive                                          = false
   private var shuttingDown                                           = false
   // scalafix:on DisableSyntax.var
+  private val redisHeartbeatPending = new AtomicBoolean(false)
 
   def onStart(@Observes event: StartupEvent): Unit =
     if coordinatorEnabled then
@@ -165,25 +173,36 @@ class InstanceHeartbeatService:
     }
 
   private def refreshRedisHeartbeat(): Unit =
-    try
+    if redisHeartbeatPending.compareAndSet(false, true) then
-      val key = s"$redisPrefix:instances:$instanceId"
+      try
+        val key = s"$redisPrefix:instances:$instanceId"
 
-      val metadata = Map(
+        val metadata = Map(
-        "instanceId"        -> instanceId,
+          "instanceId"        -> instanceId,
-        "hostname"          -> getHostname,
+          "hostname"          -> getHostname,
-        "httpPort"          -> httpPort,
+          "httpPort"          -> httpPort,
-        "grpcPort"          -> grpcPort,
+          "grpcPort"          -> grpcPort,
-        "subscriptionCount" -> subscriptionCount,
+          "subscriptionCount" -> subscriptionCount,
-        "localCacheSize"    -> localCacheSize,
+          "localCacheSize"    -> localCacheSize,
-        "lastHeartbeat"     -> java.time.Instant.now().toString,
+          "lastHeartbeat"     -> java.time.Instant.now().toString,
-        "state"             -> "HEALTHY",
+          "state"             -> "HEALTHY",
-      )
+        )
 
-      val json = mapper.writeValueAsString(metadata)
+        val json = mapper.writeValueAsString(metadata)
-      redis.value(classOf[String]).setex(key, 5L, json)
+        reactiveRedis
-    catch
+          .value(classOf[String])
-      case ex: Exception =>
+          .setex(key, 5L, json)
-        log.warnf(ex, "Failed to refresh Redis heartbeat")
+          .subscribe()
+          .`with`(
+            _ => redisHeartbeatPending.set(false),
+            (ex: Throwable) =>
+              redisHeartbeatPending.set(false)
+              log.warnf(ex, "Failed to refresh Redis heartbeat"),
+          )
+      catch
+        case ex: Exception =>
+          redisHeartbeatPending.set(false)
+          log.warnf(ex, "Failed to serialize Redis heartbeat metadata")
 
   private def getHostname: String =
     try InetAddress.getLocalHost.getHostName

modules/core/src/test/scala/de/nowchess/chess/resource/InternalAuthFilterHttpTest.scala

@@ -0,0 +1,72 @@
+package de.nowchess.chess.resource
+
+import de.nowchess.chess.grpc.{IoGrpcClientWrapper, RuleSetGrpcAdapter}
+import de.nowchess.chess.redis.GameRedisSubscriberManager
+import io.quarkus.test.InjectMock
+import io.quarkus.test.junit.{QuarkusTest, TestProfile}
+import io.quarkus.test.junit.QuarkusTestProfile
+import io.restassured.RestAssured
+import jakarta.ws.rs.core.MediaType
+import org.junit.jupiter.api.{DisplayName, Test}
+
+import java.util.Map as JMap
+
+// scalafix:off
+class InternalAuthEnabledProfile extends QuarkusTestProfile:
+  override def getConfigOverrides(): JMap[String, String] =
+    JMap.of(
+      "nowchess.internal.auth.enabled",
+      "true",
+      "nowchess.internal.secret",
+      "test-secret-123",
+    )
+
+@QuarkusTest
+@TestProfile(classOf[InternalAuthEnabledProfile])
+@DisplayName("InternalAuthFilter HTTP")
+class InternalAuthFilterHttpTest:
+
+  @InjectMock
+  var ioWrapper: IoGrpcClientWrapper = scala.compiletime.uninitialized
+
+  @InjectMock
+  var ruleAdapter: RuleSetGrpcAdapter = scala.compiletime.uninitialized
+
+  @InjectMock
+  var subscriberManager: GameRedisSubscriberManager = scala.compiletime.uninitialized
+
+  @Test
+  @DisplayName("POST /api/board/game without secret returns 401")
+  def rejectNoSecret(): Unit =
+    RestAssured
+      .`given`()
+      .contentType(MediaType.APPLICATION_JSON)
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(401)
+
+  @Test
+  @DisplayName("POST /api/board/game with wrong secret returns 401")
+  def rejectWrongSecret(): Unit =
+    RestAssured
+      .`given`()
+      .contentType(MediaType.APPLICATION_JSON)
+      .header("X-Internal-Secret", "wrong-secret")
+      .body("{}")
+      .when()
+      .post("/api/board/game")
+      .`then`()
+      .statusCode(401)
+
+  @Test
+  @DisplayName("GET /api/board/game/{id} without secret returns 404 not 401")
+  def nonInternalEndpointNotBlocked(): Unit =
+    RestAssured
+      .`given`()
+      .when()
+      .get("/api/board/game/nonexistent")
+      .`then`()
+      .statusCode(404)
+// scalafix:on

modules/core/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=24
+MINOR=29
 PATCH=0

modules/io/CHANGELOG.md

@@ -190,3 +190,41 @@
 ### Bug Fixes
 
 * IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* 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-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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
+* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
+* 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))
+* 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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* 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-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-29 JSON - Cherry Picked ([#28](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/28)) ([dbcafd2](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/dbcafd286993e0604a6fa286c5543581a149439e))
+* NCS-30 FEN Parser using ParserCombinators ([#21](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/21)) ([b4bc72f](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/b4bc72f7e49f94d6e1bc805c68680e5fe8ef8e36))
+* NCS-31 FastParse FEN ([#22](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/22)) ([7a045d3](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/7a045d31d757bbc5aa6f4bad2664ebe8b8519cac))
+* 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))
+* 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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* IO microservice ([#38](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/38)) ([a386f57](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/a386f57c21d34ead6cc6f92836c52b714597e289))

modules/io/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=17
+MINOR=19
 PATCH=0

modules/json/CHANGELOG.md

@@ -18,3 +18,13 @@
 ### Features
 
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))

modules/json/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=6
 PATCH=0

modules/official-bots/CHANGELOG.md

@@ -37,3 +37,23 @@
 * **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))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))

modules/official-bots/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=6
 PATCH=0

modules/rule/CHANGELOG.md

@@ -203,3 +203,39 @@
 ### Bug Fixes
 
 * NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **docker:** update COPY command in native Dockerfile to reflect new build path ([952cf00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/952cf00413fcbc5e9df1bad224d2e99f07064bf7))
+* 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-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
+
+* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **docker:** update COPY command in native Dockerfile to reflect new build path ([952cf00](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/952cf00413fcbc5e9df1bad224d2e99f07064bf7))
+* 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-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
+
+* NCS-32 Queenside Castle doesn't care about pieces in the way ([#23](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/23)) ([fe8e3c0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/fe8e3c05397f433bfa34d1999e9738c82790adf7))

modules/rule/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=13
+MINOR=15
 PATCH=0

modules/security/CHANGELOG.md

@@ -18,3 +18,22 @@
 ### Features
 
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-03)
+
+### Features
+
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **auth:** correct internal secret validation logic in InternalAuthFilter ([85b1872](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/85b187293f12f149494986872d6b06789945ea18))

modules/security/src/main/scala/de/nowchess/security/InternalAuthFilter.scala

@@ -23,5 +23,5 @@ class InternalAuthFilter extends ContainerRequestFilter:
   override def filter(ctx: ContainerRequestContext): Unit =
     if authEnabled then
       val header = Option(ctx.getHeaderString("X-Internal-Secret"))
-      if header.isEmpty || header.get.equals(secret) then
+      if header.isEmpty || (!header.get.equals(secret)) then
         ctx.abortWith(Response.status(Response.Status.UNAUTHORIZED).build())

modules/security/src/main/scala/de/nowchess/security/InternalClientHeadersFactory.scala

@@ -0,0 +1,30 @@
+package de.nowchess.security
+
+import jakarta.enterprise.context.ApplicationScoped
+import jakarta.ws.rs.core.MultivaluedMap
+import org.eclipse.microprofile.config.inject.ConfigProperty
+import org.eclipse.microprofile.rest.client.ext.DefaultClientHeadersFactoryImpl
+
+import scala.compiletime.uninitialized
+
+@ApplicationScoped
+class InternalClientHeadersFactory extends DefaultClientHeadersFactoryImpl {
+
+  @ConfigProperty(name = "nowchess.internal.secret", defaultValue = "")
+  // scalafix:off DisableSyntax.var
+  var secret: String = uninitialized
+
+  @ConfigProperty(name = "nowchess.internal.auth.enabled", defaultValue = "true")
+  var authEnabled: Boolean = uninitialized
+  // scalafix:on DisableSyntax.var
+
+  override def update(
+      incomingHeaders: MultivaluedMap[String, String],
+      clientOutgoingHeaders: MultivaluedMap[String, String],
+  ): MultivaluedMap[String, String] = {
+    val default = super.update(incomingHeaders, clientOutgoingHeaders)
+    default.putSingle("X-Internal-Secret", secret)
+    default
+  }
+
+}

modules/security/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=7
 PATCH=0

modules/store/CHANGELOG.md

@@ -39,3 +39,40 @@
 * **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))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-05)
+
+### Features
+
+* **config:** update application.yml for PostgreSQL and remove staging/production configurations ([2404e61](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/2404e6164c3b50ffccbea5238d636060d6abe4d6))
+* **config:** update application.yml for staging and production environments ([6113432](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/6113432a14c476a3a0dfc0d449e17d023697f2ba))
+* **config:** update application.yml to nest HTTP port configuration ([3efebd5](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/3efebd5ed0493159c51f7246d18d59bac58cf875))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+
+### Bug Fixes
+
+* **redis:** update Redis configuration with max pool size and waiting parameters ([5baf6a7](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/5baf6a7cdbea484fc49c02e2b5a1c3919b7fa2c4))

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

@@ -8,6 +8,8 @@ quarkus:
       enabled: true
   redis:
     hosts: redis://${REDIS_HOST:localhost}:${REDIS_PORT:6379}
+    max-pool-size: 64
+    max-pool-waiting: 128
   datasource:
     db-kind: postgresql
     username: ${DB_USER:nowchess}

modules/store/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=7
 PATCH=0

modules/ws/CHANGELOG.md

@@ -41,3 +41,26 @@
 * **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([34b9933](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/34b993304670cf2aa62cd2f6460cee7b9864b08e))
 * **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
 * true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-01)
+
+### Features
+
+* **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))
+* **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))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))
+##  (2026-05-02)
+
+### Features
+
+* **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))
+* **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))
+* **docker:** add Dockerfiles for Quarkus application in JVM and native modes ([e5fe7d0](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/e5fe7d07a58e018151bb24f4ee37c06e72608ded))
+* **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))
+* true-microservices ([#40](https://git.janis-eccarius.de/NowChess/NowChessSystems/issues/40)) ([5909242](https://git.janis-eccarius.de/NowChess/NowChessSystems/commit/590924254e8a2754de661a57a03e43f89ceb6299))

modules/ws/src/main/scala/de/nowchess/ws/resource/GameWebSocketResource.scala

@@ -6,6 +6,7 @@ import io.quarkus.redis.datasource.pubsub.PubSubCommands
 import io.quarkus.websockets.next.*
 import io.smallrye.jwt.auth.principal.JWTParser
 import jakarta.inject.Inject
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import scala.util.Try
 import java.util.concurrent.ConcurrentHashMap
@@ -14,6 +15,8 @@ import java.util.function.Consumer
 @WebSocket(path = "/api/board/game/{gameId}/ws")
 class GameWebSocketResource:
 
+  private val log = Logger.getLogger(classOf[GameWebSocketResource])
+
   // scalafix:off DisableSyntax.var
   @Inject
   var redis: RedisDataSource = uninitialized
@@ -40,6 +43,7 @@ class GameWebSocketResource:
       .filter(_.nonEmpty)
       .flatMap(token => Try(jwtParser.parse(token)).toOption)
       .map(_.getSubject)
+    log.infof("Game WebSocket opened — gameId=%s playerId=%s", gameId, playerId.getOrElse("anonymous"))
     val handler: Consumer[String] = msg => connection.sendText(msg).subscribe().`with`(_ => (), _ => ())
     val subscriber                = redis.pubsub(classOf[String]).subscribe(s2cTopic(gameId), handler)
     connections.put(connection.id(), ConnectionMeta(gameId, subscriber, playerId))
@@ -60,6 +64,7 @@ class GameWebSocketResource:
   @OnClose
   def onClose(connection: WebSocketConnection): Unit =
     Option(connections.remove(connection.id())).foreach { meta =>
+      log.infof("Game WebSocket closed — gameId=%s", meta.gameId)
       meta.subscriber.unsubscribe(s2cTopic(meta.gameId))
     }
 

modules/ws/src/main/scala/de/nowchess/ws/resource/UserWebSocketResource.scala

@@ -6,6 +6,7 @@ import io.quarkus.redis.datasource.pubsub.PubSubCommands
 import io.quarkus.websockets.next.*
 import io.smallrye.jwt.auth.principal.JWTParser
 import jakarta.inject.Inject
+import org.jboss.logging.Logger
 import scala.compiletime.uninitialized
 import scala.util.Try
 import java.util.concurrent.ConcurrentHashMap
@@ -14,6 +15,8 @@ import java.util.function.Consumer
 @WebSocket(path = "/api/user/ws")
 class UserWebSocketResource:
 
+  private val log = Logger.getLogger(classOf[UserWebSocketResource])
+
   // scalafix:off DisableSyntax.var
   @Inject
   var redis: RedisDataSource = uninitialized
@@ -38,8 +41,11 @@ class UserWebSocketResource:
       .map(_.getSubject)
 
     userIdOpt match
-      case None => connection.close().subscribe().`with`(_ => (), _ => ())
+      case None =>
+        log.warn("WebSocket opened with no valid JWT — closing connection")
+        connection.close().subscribe().`with`(_ => (), _ => ())
       case Some(userId) =>
+        log.infof("User WebSocket opened — userId=%s", userId)
         val handler: Consumer[String] = msg => connection.sendText(msg).subscribe().`with`(_ => (), _ => ())
         val subscriber                = redis.pubsub(classOf[String]).subscribe(userTopic(userId), handler)
         connections.put(connection.id(), (userId, subscriber))
@@ -48,6 +54,7 @@ class UserWebSocketResource:
 
   @OnClose
   def onClose(connection: WebSocketConnection): Unit =
+    log.infof("User WebSocket closed — connectionId=%s", connection.id())
     Option(connections.remove(connection.id())).foreach { (userId, subscriber) =>
       subscriber.unsubscribe(userTopic(userId))
     }

modules/ws/versions.env

@@ -1,3 +1,3 @@
 MAJOR=0
-MINOR=4
+MINOR=6
 PATCH=0

settings.gradle.kts

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

test

@@ -1,7 +1,7 @@
 #! /usr/bin/env bash
 set -euo pipefail
 
-./gradlew test
+./gradlew test -Dquarkus.profile=test
 
 if [ "$#" -eq 0 ]; then
   PYTHONUTF8=1 python3 jacoco-reporter/test_gaps.py