Fusion
643010d708
fix(FN-2084): improve auto-merge error recovery observability
- Add runtimeLog.error diagnostics when auto-merge recovery updates fail after conflict, non-conflict, or strategy errors
- Keep recovery behavior best-effort while surfacing concrete failure reasons from thrown exceptions
- Add merge-error-recovery tests for conflict retry exhaustion, non-conflict/strategy failures, and verification-error rollback to in-progress
- Verify recovery paths do not crash merge draining when persistence calls fail