Get Priorities

Get user's active priorities with Google connection status.

Returns only active priorities (retired priorities are excluded) along with Google Calendar connection status for the widget to display.

Args: user_id: User ID from validated JWT (via X-User-ID header) session: Database session

Returns: 200: { "success": true, "data": { "priorities": [...], "google_connection": { "connected": true, "scopes": ["..."] }, "available_keywords": ["P2", "P3"] } }