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/routes.py

@@ -46,4 +46,77 @@ async def dashboard_conversations(request: Request, db: AsyncSession = Depends(g
     return templates.TemplateResponse("conversations.html", {
         "request": request,
         "title": "Conversations - Claude Code Tracker"
+    })
+
+
+@dashboard_router.get("/dashboard/import", response_class=HTMLResponse)
+async def dashboard_import(request: Request, db: AsyncSession = Depends(get_db)):
+    """Data import page."""
+    return templates.TemplateResponse("import.html", {
+        "request": request,
+        "title": "Import Data - Claude Code Tracker"
+    })
+
+
+@dashboard_router.get("/dashboard/projects/{project_id}/timeline", response_class=HTMLResponse)
+async def dashboard_project_timeline(request: Request, project_id: int, db: AsyncSession = Depends(get_db)):
+    """Project timeline page."""
+    return templates.TemplateResponse("project_timeline.html", {
+        "request": request,
+        "title": f"Timeline - Project {project_id}",
+        "project_id": project_id
+    })
+
+
+@dashboard_router.get("/dashboard/projects/{project_id}/stats", response_class=HTMLResponse)
+async def dashboard_project_stats(request: Request, project_id: int, db: AsyncSession = Depends(get_db)):
+    """Project statistics page."""
+    return templates.TemplateResponse("project_stats.html", {
+        "request": request,
+        "title": f"Statistics - Project {project_id}",
+        "project_id": project_id
+    })
+
+
+@dashboard_router.get("/dashboard/docs", response_class=HTMLResponse)
+async def dashboard_docs(request: Request, db: AsyncSession = Depends(get_db)):
+    """Documentation overview page."""
+    return templates.TemplateResponse("docs/index.html", {
+        "request": request,
+        "title": "Documentation - Claude Code Tracker"
+    })
+
+
+@dashboard_router.get("/dashboard/docs/{section}", response_class=HTMLResponse)
+async def dashboard_docs_section(request: Request, section: str, db: AsyncSession = Depends(get_db)):
+    """Documentation section pages."""
+    # Map section names to templates and titles
+    sections = {
+        "getting-started": {
+            "template": "docs/getting-started.html",
+            "title": "Getting Started - Claude Code Tracker"
+        },
+        "hook-setup": {
+            "template": "docs/hook-setup.html", 
+            "title": "Hook Setup Guide - Claude Code Tracker"
+        },
+        "api-reference": {
+            "template": "docs/api-reference.html",
+            "title": "API Reference - Claude Code Tracker"
+        },
+        "faq": {
+            "template": "docs/faq.html",
+            "title": "FAQ - Claude Code Tracker"
+        }
+    }
+    
+    if section not in sections:
+        from fastapi import HTTPException
+        raise HTTPException(status_code=404, detail=f"Documentation section '{section}' not found")
+    
+    section_info = sections[section]
+    return templates.TemplateResponse(section_info["template"], {
+        "request": request,
+        "title": section_info["title"],
+        "section": section
     })