jedarden
158752fe7b
feat(multi-search): implement timeout enforcement and acceptance tests (§13.11)
- Add per-query and total timeout enforcement to MultiSearchExecutor
- Improve SearchResult with helper methods (ok, err, timeout, is_success)
- Fix ModeACoordinator feature-gate compilation issues
- Add comprehensive acceptance tests for multi-search:
- 5-query batch completion
- Slow query doesn't block fast queries (parallel execution)
- Partial failure handling
- Per-query timeout
- Total timeout
- 100-query batch completion
Closes: miroir-uhj.11