feat: implement real-time database synchronization with SSE and update backend modules

.github/workflows/test.yml

@@ -7,7 +7,8 @@ on:
     branches: [ main, develop ]
 
 jobs:
-  test:
+  backend-pr-quick:
+    if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     
     strategy:
@@ -28,14 +29,64 @@ jobs:
         working-directory: ./backend
         run: npm ci
 
+      - name: Prisma schema validate
+        working-directory: ./backend
+        run: npx prisma validate --schema prisma/schema.prisma
+
       - name: Generate Prisma Client
         working-directory: ./backend
         run: npm run prisma:generate
 
+      - name: Verify generated Prisma client is typed
+        working-directory: ./backend
+        run: |
+          if ! grep -q "export \* from '.prisma/client/default'" node_modules/@prisma/client/index.d.ts; then
+            echo "Prisma client export is unexpected";
+            exit 1;
+          fi
+
+      - name: Build NestJS app
+        working-directory: ./backend
+        run: npm run build
+
+  backend-full:
+    if: github.event_name == 'push'
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [24.15.0]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+
+      - name: Install dependencies (backend)
+        working-directory: ./backend
+        run: npm ci
+
       - name: Prisma schema validate
         working-directory: ./backend
         run: npx prisma validate --schema prisma/schema.prisma
 
+      - name: Generate Prisma Client
+        working-directory: ./backend
+        run: npm run prisma:generate
+
+      - name: Verify generated Prisma client is typed
+        working-directory: ./backend
+        run: |
+          if ! grep -q "export \* from '.prisma/client/default'" node_modules/@prisma/client/index.d.ts; then
+            echo "Prisma client export is unexpected";
+            exit 1;
+          fi
+
       - name: Dependency audit (high+critical)
         working-directory: ./backend
         run: npm audit --audit-level=high
@@ -47,7 +98,6 @@ jobs:
       - name: Build NestJS app
         working-directory: ./backend
         run: npm run build
-        continue-on-error: true
 
   flutter-quality:
     runs-on: ubuntu-latest
@@ -65,6 +115,16 @@ jobs:
               - 'flutter/**'
               - '.github/workflows/test.yml'
 
+      - name: Set Flutter test mode
+        if: steps.filter.outputs.flutter == 'true'
+        shell: bash
+        run: |
+          if [ "${{ github.event_name }}" = "pull_request" ]; then
+            echo "FLUTTER_TEST_CMD=flutter test --reporter=compact" >> "$GITHUB_ENV"
+          else
+            echo "FLUTTER_TEST_CMD=flutter test" >> "$GITHUB_ENV"
+          fi
+
       - name: Setup Flutter
         if: steps.filter.outputs.flutter == 'true'
         uses: subosito/flutter-action@v2
@@ -84,4 +144,4 @@ jobs:
       - name: Run Flutter tests
         if: steps.filter.outputs.flutter == 'true'
         working-directory: ./flutter
-        run: flutter test
+        run: ${{ env.FLUTTER_TEST_CMD }}