Why: T5 closes the interaction-foundation proposal (T0-T5); the Dev combo pins the verified combination. Evidence: zero-page walkthrough 12/12 PASS on a fresh real binary; combo make test PASS at pinned heads; records at documents docs/records/2026-09-30-t5-polish-verification.md (PR#13). Impact: gitlinks frontend/documents updated; task card backfilled; no Dev-side code change. Refs: task card feature/polish-r1; proposal T5
ui
@ 1c2ddec5c8