kibi-commit-review

Use when kibi check --staged or the Kibi pre-commit hook blocks a commit (kibi_impact_evidence_missing, symbols_manifest_stale, symbol_granularity_violation, symbol-coverage, kibi check-generated drift, Staged impact review failed), or when preparing a commit or pull-request impact review. Covers reading the per-file Detail lines, authoring .kb/symbols.yaml symbol entries through kb_upsert, kibi sync --refresh-symbol-coordinates, staging the tracked Kibi evidence with git add, kb_prepare_impact_review for a staged or diff scope, the kibi signoff requirements summary to show before a commit, and how merge commits and migration renames are judged.