- Add source_type field to projects model to distinguish between repository and ZIP sources
- Implement ZIP file storage service with save, load, delete, and metadata operations
- Add database migration to populate source_type for existing projects
- Create ZIP upload endpoint with file handling and metadata tracking
- Add ZIP download endpoint for project file retrieval
- Implement project ZIP info endpoint to check file status and metadata
- Update project creation to support both repository and ZIP source types
- Add project type constants and utility functions for source type handling
- Update database export/import to include source_type field
- Extend frontend components to support ZIP file uploads in project creation
- Add instant analysis page for direct ZIP file scanning without project creation
- Update .gitignore to exclude uploaded ZIP files and metadata
- Enhance project detail and task detail pages with ZIP file management UI
- Replace individual adapter implementations (OpenAI, Claude, Gemini, DeepSeek, Qwen, Zhipu, Moonshot, Ollama) with unified LiteLLM adapter
- Keep native adapters for providers with special API formats (Baidu, MiniMax, Doubao)
- Update LLM factory to route requests through LiteLLM for supported providers
- Add test-llm endpoint to validate LLM connections with configurable timeout and token limits
- Add get-llm-providers endpoint to retrieve supported providers and their configurations
- Update config.py to ignore extra environment variables (VITE_* frontend variables)
- Refactor Baidu adapter to use new complete() method signature and improve error handling
- Update pyproject.toml dependencies to include litellm package
- Update env.example with new configuration options
- Simplify adapter initialization and reduce code duplication across multiple provider implementations