docs(kiro): close 3 stalled specs whose follow-up work already landed

ha-config-bootstrap, scheduler-controller-msg-gap, and resval-id-decoupling
were the only 3 specs (of ~40) carrying a nonstandard status:"active"
field, each paired with a note about residual gap-audit findings that
never got refreshed once later work actually resolved them:

- ha-config-bootstrap: all 3 known deviations resolved/superseded
  (redirect fields -> libxce-failover; WAL majority-commit scope -> the
  deliberate wal_classify() WAIT/RETAIN design; commit-timeout durability
  -> bug-661 fix via ha-commit-durability, live-reverified 2026-07-18).
  One narrower, genuinely new gap found in passing (OP_upgradeConfig
  replies lack redirect wiring, admin-config-tool task 6.3) is flagged
  in the note for a future spec, not folded back into this one.
- scheduler-controller-msg-gap: both open items (sched_pend_update_killer
  leak, test coverage) were fixed via bug-765 across 4 commits on
  2026-06-19, verified directly in current scheduler.c and the test
  suite -- the note just never caught up.
- resval-id-decoupling: not just an investigation -- the recommended
  name-keyed collect_resval() fix shipped one day after the spec was
  created (commit d47b3375), verified as the sole implementation left
  in current code. Description no longer named the deleted function;
  status:"active" flipped to "closed" and a note added to match its
  sibling specs' convention.

All three verified via direct code/commit/buglog inspection (not just
trusting stale spec text) before closing. status:"active" -> "closed"
in all three; phase stays "implemented" (already correct).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.kiro/specs/scheduler-controller-msg-gap/spec.json

@@ -3,9 +3,9 @@
   "description": "Analyze the codebase to find gaps in the scheduler's handling of controller messages \u2014 missing message types, unhandled edge cases, or incomplete message processing paths",
   "phase": "implemented",
   "created_at": "2026-05-11T01:34:00-07:00",
-  "updated_at": "2026-05-11T19:30:00-07:00",
+  "updated_at": "2026-08-16T04:30:00-07:00",
   "language": "en",
-  "status": "active",
+  "status": "closed",
   "approvals": {
     "requirements": {
       "generated": true,
@@ -20,5 +20,5 @@
       "approved": true
     }
   },
-  "note": "Bugs 335/336 fixed 2026-06-10. Memory leaks in sched_pend_update_killer and test coverage gaps remain documented. Scheduler 15/15 tests green."
+  "note": "CLOSED 2026-08-16. Both open items resolved: sched_pend_update_killer leak fixed in commit 93124c56 (2026-06-19, bug-765 G-3) -- verified current scheduler.c:394-460 correctly frees all 5 payload types. Test coverage gap substantially closed in commit 276e26c3 (bug-765 G-6) -- added test_handlers.c (6 tests) + test_job_update.c (10 tests); msg-gap-relevant suites now 31/31 (the prior '15/15' predates these files). Bugs 335/336 confirmed fixed 2026-06-10. 3 low-value residuals remain individually documented in tasks.md's Implementation Notes (9.2 -ENOMEM fault-injection, 9.6 dormant worker-resvals apply path, 9.9 log-capture-gated WARN test) -- non-blocking, not worth standalone tracking."
 }