Add Gitea CI/CD workflow and update compose to use registry image

.gitea/workflows/build-and-deploy.yml

@@ -0,0 +1,53 @@
+name: build-and-deploy
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+#───────────────── build & push ─────────────────
+  build:
+    runs-on: docker
+    env:
+      REG: gitea.nucleoriofrio.com/nucleo000
+    steps:
+      - uses: actions/checkout@v3
+      - uses: docker/setup-buildx-action@v2
+      - uses: docker/login-action@v2
+        with:
+          registry: gitea.nucleoriofrio.com
+          username: nucleo000
+          password: 7bc7b2fcd283bd6a251bef3ede368b7f897c919d
+
+      - name: Build+push amigos-app
+        run: |
+          docker build -t $REG/amigos-app:${{ github.sha }} -t $REG/amigos-app:latest .
+          docker push $REG/amigos-app:${{ github.sha }}
+          docker push $REG/amigos-app:latest
+
+#───────────────── deploy ─────────────────
+  deploy:
+    needs: build
+    runs-on: docker
+    env:
+      REG: gitea.nucleoriofrio.com/nucleo000
+    steps:
+      - uses: actions/checkout@v3
+      - name: Login to registry
+        run: docker login gitea.nucleoriofrio.com -u nucleo000 -p 7bc7b2fcd283bd6a251bef3ede368b7f897c919d
+
+      - name: Info about MongoDB
+        run: |
+          echo "ℹ️  MongoDB will be deployed with default credentials"
+          echo "   Database: testdb"
+          echo "   Username: admin"
+          echo "   Password: MongoPass2024!"
+
+      - name: Pull fresh images used in compose
+        run: docker compose pull
+
+      - name: Clean up stack
+        run: docker compose --project-name amigos-app down
+
+      - name: Update stack
+        run: docker compose --project-name amigos-app up -d --remove-orphans --wait