Replace blocking await with non-blocking timer scheduling to handle race
condition between session.idle and session.error events. When ESC abort
occurs, session.error immediately cancels the pending timer, preventing
unwanted continuation prompts.
Changes:
- Add pendingTimers Map to track scheduled continuation checks
- Cancel timer on session.error (especially abort cases)
- Cancel timer on message.updated and session.deleted for cleanup
- Reduce delay to 200ms for faster response
- Maintain existing Set-based flag logic for compatibility
This fixes the issue where ESC abort would not prevent continuation
prompts due to event ordering (idle before error)
YeonGyu-Kim
8102d178cb