Enhance parsers and refactor analytics system

[sanggggg]

Summary

This PR enhances the chat parsers system and refactors the analytics service to improve code maintainability and add project inference capabilities.

Changes

• Enhanced Claude Code parser: Improved parsing logic and error handling in src/parsers/claude_code.rs
• Enhanced Gemini parser: Added new functionality to src/parsers/gemini.rs
• Added project inference: New src/parsers/project_inference.rs module for intelligent project context detection
• Refactored analytics: Simplified analytics service by removing legacy methods and consolidating functionality in TUI layer
• Updated gitignore: Added additional patterns for better file exclusion
• Updated dependencies: Cleaned up Cargo.toml dependencies

Removed Code

• Removed legacy analytics service methods (~178 lines)
• Removed outdated contract and integration tests (~523 lines total)
• Consolidated analytics logic into TUI layer for better separation of concerns

Technical Details

• Added project inference capabilities to better understand chat context
• Improved parser robustness and error handling
• Streamlined analytics architecture by moving logic closer to presentation layer

🤖 Generated with Claude Code