feat: Implement Development Environment and Comprehensive Template System

[CodeGuideDev]

Summary

This PR implements the foundational development environment and comprehensive template system for the CodeGuide Starter Kit Lite, completing Tasks 0 and 1 from the project roadmap.

✅ Task 0: Development Environment and Core Infrastructure

Docker & Development Setup:

• Complete Docker Compose configuration with PostgreSQL, Redis, and MinIO
• Production-ready Dockerfile with standalone Next.js build
• Enhanced development scripts and environment management

Backend Infrastructure:

• Redis integration for session caching and advanced rate limiting
• AWS S3 integration with signed URLs for secure file operations
• Multi-tier rate limiting system (API, AI generation, authentication, file uploads)
• Enhanced database schema with comprehensive RLS policies

Security & Configuration:

• Enhanced middleware with security headers and CORS configuration
• Next.js configuration with standalone output for Docker deployment
• Comprehensive environment variable management and validation
• Prettier configuration for consistent code formatting

✅ Task 1: Template System and Database Schema

Template Management:

• Comprehensive template CRUD operations with Zod validation
• Template cloning and statistics tracking
• Template categories system with usage analytics
• Advanced template service layer with recommendations and compatibility checking

Database Design:

• Complete database schema for templates, projects, versions, and collaboration
• Row Level Security policies for multi-tenant data isolation
• Automated version control system with change tracking
• Collaboration features with comments and access controls

API Implementation:

• RESTful API endpoints with proper authentication and rate limiting
• Project content validation against template schemas
• Export service foundation (JSON/Markdown) for future expansion
• Comprehensive error handling and validation

Technical Highlights

• Security-First Design: Comprehensive RLS policies, rate limiting, and security headers
• Scalable Architecture: Docker containerization, Redis caching, and S3 storage
• Type Safety: Full TypeScript implementation with Zod validation schemas
• Developer Experience: Docker Compose development environment, Prettier formatting
• Production Ready: Standalone builds, security headers, proper error handling

What's Ready to Use

✅ Docker development environment (npm run docker:dev)
✅ Template CRUD operations with validation
✅ Project management with version control
✅ Rate limiting and session management
✅ File storage with AWS S3 integration
✅ Database with comprehensive RLS policies

Next Steps

The foundation is now in place for:

• NLP Integration and Outline Generation (Task 2)
• Frontend Interface with Real-time Features (Task 3)
• Multi-format Export System and Production Deployment (Task 4)

Test Plan

• Docker containers start correctly and communicate
• Database migrations run successfully
• API endpoints validate input and enforce rate limits
• Template system validates structure and content
• Authentication and authorization work correctly
• Redis caching and session management functional
• S3 file operations with signed URLs

Breaking Changes

None - this is foundational implementation.

Environment Variables

New environment variables added (see .env.example):

• Database and Redis connection URLs
• AWS S3 configuration
• JWT and security secrets
• Rate limiting configuration

🤖 Generated with Claude Code