- Introduced `first_valid_response_ms` and `ttfr_ms` to track the timing of the first valid response in LLM calls.
- Updated relevant interfaces and components to display and utilize the new metrics, including CallDetails, CallTable, and LatencyChart.
- Enhanced the database schema to accommodate the new timing fields.
- Implemented logic in the service layer to record the first valid response during model interactions.
- Changed `run_id` to `request_id` in `CursorParent` struct for clarity.
- Enhanced the `prepare` function to handle parent requests asynchronously, ensuring proper error handling for active runs.
- Updated database interactions to include `cursor_request_id` for better tracking of requests.
- Added tests to verify the behavior of reused cursor request IDs and their mapping to distinct executions.