add deploy action

.gitea/workflows/deploy.yaml

@@ -0,0 +1,20 @@
+name: Deploy Bookshelf
+on:
+  push:
+    branches:
+      - main
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Deploy via SSH
+        run: |
+          ssh ${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }} << 'EOF'
+            set -e
+            cd ${{ secrets.DEPLOY_PATH }}
+            git pull
+            docker compose pull
+            docker compose up -d --build
+          EOF