Add Gitea Actions workflow for auto-deployment

Replace webhook-based deployment with Gitea Actions workflow.
On push to main, the workflow will:
- SSH into the server
- Pull latest code
- Rebuild and restart Docker containers

Required secrets in Gitea:
- SERVER_HOST
- SERVER_USER
- SERVER_SSH_KEY
- SERVER_PORT

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -0,0 +1,40 @@
+name: Deploy to Server
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Deploy to server via SSH
+        uses: appleboy/ssh-action@v1.0.3
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SERVER_SSH_KEY }}
+          port: ${{ secrets.SERVER_PORT }}
+          script: |
+            cd /home/bini/shorts-maker
+
+            echo "=== Pulling latest code ==="
+            git fetch origin
+            git reset --hard origin/main
+
+            echo "=== Rebuilding Docker containers ==="
+            docker compose build --no-cache
+
+            echo "=== Restarting containers ==="
+            docker compose down
+            docker compose up -d
+
+            echo "=== Cleaning up old images ==="
+            docker image prune -f
+
+            echo "=== Deployment completed ==="
+            docker compose ps