Add Gitea Actions deploy workflow

.gitea/workflows/deploy.yml

@@ -0,0 +1,26 @@
+name: Build and deploy to Firebase Hosting
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+
+      - run: npm ci
+      - run: npm run build
+
+      - name: Deploy to Firebase Hosting
+        env:
+          FIREBASE_SERVICE_ACCOUNT: ${{ secrets.FIREBASE_SERVICE_ACCOUNT }}
+        run: |
+          echo "$FIREBASE_SERVICE_ACCOUNT" > "$RUNNER_TEMP/firebase-sa.json"
+          GOOGLE_APPLICATION_CREDENTIALS="$RUNNER_TEMP/firebase-sa.json" npx firebase-tools@latest deploy --project itsamejms --only hosting --non-interactive