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/dashboard/templates/base.html

@@ -47,12 +47,24 @@
                             Conversations
                         </a>
                     </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="/dashboard/import">
+                            <i class="fas fa-download me-1"></i>
+                            Import Data
+                        </a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="/dashboard/docs">
+                            <i class="fas fa-book me-1"></i>
+                            Docs
+                        </a>
+                    </li>
                 </ul>
                 
                 <ul class="navbar-nav">
                     <li class="nav-item">
                         <a class="nav-link" href="/docs" target="_blank">
-                            <i class="fas fa-book me-1"></i>
+                            <i class="fas fa-external-link-alt me-1"></i>
                             API Docs
                         </a>
                     </li>