ci: add Gitea Actions workflows (CI/deploy + weekly npm audit)

- ci.yml: run Playwright tests on every push to main, then deploy to VPS
  if tests pass; includes post-deploy health check
- audit.yml: weekly npm audit (Mondays 07:00 UTC), fails on high/critical
- Requires VPS_SSH_KEY secret (already configured in repo settings)

.gitea/workflows/ci.yml

@@ -0,0 +1,77 @@
+name: CI · Test & Deploy
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  # ─────────────────────────────────────────────
+  # JOB 1: Playwright tests
+  # ─────────────────────────────────────────────
+  test:
+    name: Playwright tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci --omit=dev
+
+      - name: Install Playwright browsers
+        run: npx playwright install chromium --with-deps
+
+      - name: Start app (static HTTP server)
+        run: |
+          npm install --save-dev http-server
+          npx http-server . -p 9090 &
+          sleep 2
+
+      - name: Run Playwright tests
+        run: npx playwright test --reporter=list
+        env:
+          APP_URL: http://localhost:9090
+
+  # ─────────────────────────────────────────────
+  # JOB 2: Deploy to VPS (only if tests pass)
+  # ─────────────────────────────────────────────
+  deploy:
+    name: Deploy to VPS
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup SSH key
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.VPS_SSH_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          ssh-keyscan -H 80.225.185.50 >> ~/.ssh/known_hosts
+
+      - name: Upload static files
+        run: |
+          scp -i ~/.ssh/id_ed25519 index.html comarca-paths.js \
+            ubuntu@80.225.185.50:/srv/docker/data/comarques/public/
+
+      - name: Upload server files & rebuild
+        run: |
+          ssh -i ~/.ssh/id_ed25519 ubuntu@80.225.185.50 "mkdir -p /srv/docker/builds/comarques"
+          scp -i ~/.ssh/id_ed25519 server.js package.json Dockerfile \
+            ubuntu@80.225.185.50:/srv/docker/builds/comarques/
+          ssh -i ~/.ssh/id_ed25519 ubuntu@80.225.185.50 \
+            "cd /srv/docker/builds/comarques && docker build -t comarques-de-catalunya:latest . \
+             && cd /srv/docker/compose && docker compose up -d comarques"
+
+      - name: Health check
+        run: |
+          sleep 5
+          curl -fs https://comarques.jaumegar.work/api/health \
+            || (echo "❌ Health check failed after deploy" && exit 1)