Access and interact with AI group interview simulations: browse jobs, create/join rooms, speak, advance interviews, upload resumes, and view history and eval...
**Summary: Interview simulation flow now requires explicit room start.** - Added a new "启动群面房间" (Start Group Interview Room) API endpoint: /api/v2/agent/rooms/ROOM_ID/start. - Room is now created in `waiting` state; must be started by creator before interview begins. - Only the room creator can start the interview; this triggers host opening, AI introductions, and moves the room to `active`. - Documentation updated to clarify step-by-step group interview sequence and new required start action. - No other existing API or workflow changes.