Close historical merged review findings fixed on main

[Anionix]

Historical merged review findings that were fixed by later merged PRs but still have active GitHub review threads:

• PR Bootstrap agent and issue-tracker contracts #2 context/ADR paths: Bootstrap agent and issue-tracker contracts #2 (comment) — fixed by Define research lanes and evidence lifecycle #22
• PR Pin the reproducible benchmark environment #19 uv.lock: Pin the reproducible benchmark environment #19 (comment) — fixed by Commit the generated Python dependency lock #20
• PR Update vulnerable Arrow and pytest dependencies #23 isolated TsFile dependency path: Update vulnerable Arrow and pytest dependencies #23 (comment) — fixed by Publish isolated TsFile claim dependencies #63
• PR Add Lance storage and FTS claim verification #31 FTS matching semantics: Add Lance storage and FTS claim verification #31 (comment) — fixed by the single-term claim queries in Orchestrate claims and prompt profiles #49
• PR Add prepare and verify workflows #44 lifecycle contract comment: Add prepare and verify workflows #44 (comment) — reinforced by fix: close lifecycle terminal states #74

Acceptance:

• verify each fix on current main
• reply to each source thread with its fix
• resolve each source thread
• close this issue after GitHub readback shows no listed thread active