- Add context-overflow detection and recovery in step-session executor with same parity as single-session
- Implement step resumption from overflow checkpoints with accumulated context replay
- Add overflow state tracking and recovery logging for diagnostics
- Harden single-session executor overflow recovery with improved state management
- Update appendAgentLog parameter signatures across executors
- Add comprehensive tests for context overflow scenarios in both execution modes
- Add memory entry documenting the unified context-limit recovery approach