feat: Add initial production deployment support

- Add .env.example file for environment variable setup
- Add .gitignore to manage sensitive files and directories
- Add Dockerfile.prod for production-ready Docker image
- Add PRODUCTION_CHECKLIST.md for pre/post deployment steps
- Add PRODUCTION_DEPLOYMENT.md for deployment instructions
- Add STRIPE_SETUP.md for Stripe payment configuration
- Add config/default.toml for default configuration settings
- Add config/local.toml.example for local configuration template

actix_mvc_app/.gitignore

@@ -0,0 +1,53 @@
+# Rust build artifacts
+/target/
+Cargo.lock
+
+# Environment files
+.env
+.env.local
+.env.production
+
+# Local configuration files
+config/local.toml
+config/production.toml
+
+# Database files
+data/*.db
+data/*.sqlite
+data/*.json
+
+# Log files
+logs/
+*.log
+
+# IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Temporary files
+tmp/
+temp/
+
+# SSL certificates (keep examples)
+nginx/ssl/*.pem
+nginx/ssl/*.key
+!nginx/ssl/README.md
+
+# Docker volumes
+docker-data/
+
+# Backup files
+*.bak
+*.backup
+
+# Keep important development files
+!ai_prompt/
+!PRODUCTION_DEPLOYMENT.md
+!STRIPE_SETUP.md
+!payment_plan.md