feat: add Claude Code conversation tracker

- Create claude-code-tracker service to monitor and parse Claude Code conversations
- Parse JSONL format with messages, tool calls, and metadata
- Store in SQLite with full-text search support
- Generate daily summaries using Claude API
- Add Conversations UI with search, stats, and conversation browsing
- Integrate with dashboard backend and frontend
- Add sync script for Mac to NAS file transfer

dashboard/backend/main.py

@@ -25,6 +25,7 @@ from routers import auth as auth_router
 from routers import (
     cc_connect,
     chat_summary,
+    conversation_tracker,
     docker_router,
     files,
     gitea,
@@ -296,6 +297,10 @@ app.include_router(
     prefix="/api/chat-summary",
     dependencies=[Depends(_inject_user), Depends(require_page("chat-digest"))],
 )
+app.include_router(
+    conversation_tracker.router,
+    dependencies=[Depends(_inject_user), Depends(require_page("conversations"))],
+)
 app.include_router(
     info_engine.router,
     prefix="/api/info-engine",