Add automated deployment script template

Created deploy-to-coolify.example.sh script that:
- Reads configuration from .env file
- Creates Coolify application via API
- Configures domain and Traefik labels
- Sets up GitHub webhook for automatic deployments
- Generates deployment secrets automatically
- Provides step-by-step deployment feedback

Updated .gitignore to exclude:
- deploy-to-coolify.sh (customized copy)
- deployment-info.txt (contains secrets)

Users copy the example script and customize for their deployment.

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

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

.gitignore

@@ -13,3 +13,5 @@ deploy_key
 # Deployment keys and scripts
 deploy_key*
 deploy.sh
+deploy-to-coolify.sh
+deployment-info.txt