Add comprehensive documentation system and tool call tracking

## Documentation System
- Create complete documentation hub at /dashboard/docs with:
  - Getting Started guide with quick setup and troubleshooting
  - Hook Setup Guide with platform-specific configurations
  - API Reference with all endpoints and examples
  - FAQ with searchable questions and categories
- Add responsive design with interactive features
- Update navigation in base template

## Tool Call Tracking
- Add ToolCall model for tracking Claude Code tool usage
- Create /api/tool-calls endpoints for recording and analytics
- Add tool_call hook type with auto-session detection
- Include tool calls in project statistics and recalculation
- Track tool names, parameters, execution time, and success rates

## Project Enhancements
- Add project timeline and statistics pages (fix 404 errors)
- Create recalculation script for fixing zero statistics
- Update project stats to include tool call counts
- Enhance session model with tool call relationships

## Infrastructure
- Switch from requirements.txt to pyproject.toml/uv.lock
- Add data import functionality for claude.json files
- Update database connection to include all new models
- Add comprehensive API documentation

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/models/__init__.py

@@ -9,6 +9,7 @@ from .conversation import Conversation
 from .activity import Activity
 from .waiting_period import WaitingPeriod
 from .git_operation import GitOperation
+from .tool_call import ToolCall
 
 __all__ = [
     "Base",
@@ -18,4 +19,5 @@ __all__ = [
     "Activity",
     "WaitingPeriod",
     "GitOperation",
+    "ToolCall",
 ]