ci: add dev build pipeline with backend (.NET) and frontend (Angular) jobs

.gitea/workflows/dev.yml

@@ -0,0 +1,72 @@
+name: Dev Build
+
+on:
+  pull_request:
+    branches: [dev]
+  push:
+    branches: [dev]
+
+jobs:
+  build-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Restore backend
+        run: dotnet restore
+        working-directory: ./backend
+
+      - name: Build backend
+        run: dotnet build --no-restore --configuration Release
+        working-directory: ./backend
+
+      - name: Test backend
+        run: dotnet test --no-build --configuration Release
+        working-directory: ./backend
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+
+      - name: Install frontend deps
+        run: npm ci
+        working-directory: ./frontend
+
+      - name: Build frontend
+        run: npm run build
+        working-directory: ./frontend
+
+      - name: Build API client
+        run: |
+          npm ci
+          npm run build --if-present
+        working-directory: ./api-client
+
+  notify-success:
+    needs: build-test
+    if: success() && gitea.event_name == 'push'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Notify Slack success
+        run: |
+          curl -X POST -H 'Content-type: application/json' \
+            --data "{\"text\":\"✅ Control-Center dev built successfully.\"}" \
+            "${{ secrets.SLACK_WEBHOOK_URL }}"
+
+  notify-failure:
+    needs: build-test
+    if: failure()
+    runs-on: ubuntu-latest
+    steps:
+      - name: Notify Slack failure
+        run: |
+          curl -X POST -H 'Content-type: application/json' \
+            --data "{\"text\":\"🚨 Control-Center dev pipeline failed. Check Gitea Actions for details.\"}" \
+            "${{ secrets.SLACK_WEBHOOK_URL }}"