ci: add Forgejo Actions workflow for build and deploy

.forgejo/workflows/deploy.yml

@@ -0,0 +1,44 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-and-deploy:
+    runs-on: docker
+    steps:
+      - name: Checkout code
+        uses: https://data.forgejo.org/actions/checkout@v4
+
+      - name: Login to registry
+        run: |
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.lilastudy.com -u "${{ secrets.REGISTRY_USER }}" --password-stdin
+
+      - name: Build API image
+        run: |
+          docker build \
+            -t git.lilastudy.com/forgejo-lila/lila-api:latest \
+            --target runner \
+            -f apps/api/Dockerfile .
+
+      - name: Build Web image
+        run: |
+          docker build \
+            -t git.lilastudy.com/forgejo-lila/lila-web:latest \
+            --target production \
+            --build-arg VITE_API_URL=https://api.lilastudy.com \
+            -f apps/web/Dockerfile .
+
+      - name: Push images
+        run: |
+          docker push git.lilastudy.com/forgejo-lila/lila-api:latest
+          docker push git.lilastudy.com/forgejo-lila/lila-web:latest
+
+      - name: Deploy via SSH
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          ssh -o StrictHostKeyChecking=no ${{ secrets.SSH_USER }}@${{ secrets.SSH_HOST }} \
+            "cd ~/lila-app && docker compose pull api web && docker compose up -d api web && docker image prune -f"