Initial commit: Windmill Git Sync service

Add containerized service for syncing Windmill workspaces to Git repositories.

Features:
- Flask webhook server for triggering syncs from Windmill
- wmill CLI integration for pulling workspace content
- Automated Git commits and push to remote repository
- Network-isolated (only accessible within Docker network)
- Designed to integrate with existing Windmill docker-compose files

Key components:
- Docker container with Python 3.11, wmill CLI, Git, and Flask
- Sync engine with error handling and logging
- External volume support for persistent workspace data
- Comprehensive documentation (README.md and CLAUDE.md)

setup.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# Setup script for windmill-git-sync
+
+set -e
+
+echo "Setting up Windmill Git Sync..."
+
+# Create .env file if it doesn't exist
+if [ ! -f .env ]; then
+    echo "Creating .env file from template..."
+    cp .env.example .env
+    echo "⚠️  Please edit .env with your configuration"
+else
+    echo "✓ .env file already exists"
+fi
+
+# Create Docker volume if it doesn't exist
+if ! docker volume inspect windmill-workspace-data >/dev/null 2>&1; then
+    echo "Creating windmill-workspace-data Docker volume..."
+    docker volume create windmill-workspace-data
+    echo "✓ Volume created"
+else
+    echo "✓ windmill-workspace-data already exists"
+fi
+
+echo ""
+echo "Setup complete! Next steps:"
+echo "1. Edit .env with your Windmill and Git configuration"
+echo "2. Add the windmill-git-sync service block from docker-compose.yml to your Windmill docker-compose file"
+echo "3. Run: docker-compose up -d windmill-git-sync"
+echo "4. Test from within Docker network: docker-compose exec windmill_server curl -X POST http://windmill-git-sync:8080/sync"