~anthropic/claude-sonnet-latest → B (8:2)

Side B is a substantive architectural refactor: it splits identity/path normalization into dedicated modules, removes double-canonicalization bugs (reducer no longer re-rewrites identity), fixes wire format inconsistencies (@ vs no-@ across JSON APIs), makes delegate optional for human-only ingests, and updates CLI/tests/docs consistently across the codebase. Side A is a smaller UI polish commit (vote counts on garden pins, unpin-via-HUD-form instead of link) with modest test/CSS additions but no structural or correctness improvement of comparable scope.