* Add Pydantic models for configuration validation in leggen/models/config.py
* Fix telegram config field aliases (api-key -> token, chat-id -> chat_id)
* Update config.py to use Pydantic validation with proper error handling
* Fix TOML serialization by excluding None values with exclude_none=True
* Update notification service to use correct telegram field names
* Enhance notification service with actual Discord/Telegram implementations
* Fix all failing configuration tests to work with Pydantic validation
* Add pydantic dependency to pyproject.toml
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Merge leggend API components into leggen (api/, services/, background/)
- Replace leggend command with 'leggen server' subcommand
- Consolidate configuration systems into leggen.utils.config
- Update environment variables: LEGGEND_API_URL -> LEGGEN_API_URL
- Rename LeggendAPIClient -> LeggenAPIClient
- Update all documentation, Docker configs, and compose files
- Fix all import statements and test references
- Remove duplicate utility files and clean up package structure
All tests passing (101/101), linting clean, server functionality preserved.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
