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/activity.py

@@ -46,7 +46,7 @@ class Activity(Base, TimestampMixin):
     file_path: Mapped[Optional[str]] = mapped_column(Text, nullable=True, index=True)
     
     # Metadata and results
-    metadata: Mapped[Optional[Dict[str, Any]]] = mapped_column(JSON, nullable=True)
+    activity_metadata: Mapped[Optional[Dict[str, Any]]] = mapped_column(JSON, nullable=True)
     success: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
     error_message: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
     
@@ -145,18 +145,18 @@ class Activity(Base, TimestampMixin):
     
     def get_command_executed(self) -> Optional[str]:
         """Get the command that was executed (for Bash activities)."""
-        if self.tool_name == "Bash" and self.metadata:
-            return self.metadata.get("command")
+        if self.tool_name == "Bash" and self.activity_metadata:
+            return self.activity_metadata.get("command")
         return None
     
     def get_search_pattern(self) -> Optional[str]:
         """Get the search pattern (for Grep activities)."""
-        if self.tool_name == "Grep" and self.metadata:
-            return self.metadata.get("pattern")
+        if self.tool_name == "Grep" and self.activity_metadata:
+            return self.activity_metadata.get("pattern")
         return None
     
     def get_task_type(self) -> Optional[str]:
         """Get the task type (for Task activities)."""
-        if self.tool_name == "Task" and self.metadata:
-            return self.metadata.get("task_type")
+        if self.tool_name == "Task" and self.activity_metadata:
+            return self.activity_metadata.get("task_type")
         return None