S00-012: Approve complete runner prompt delivery after lifecycle checks

Changes: Accept the preserved S00-012 stdin correction and descendant regressions; record independent QA evidence. No source changes.
Validation: Reproduced the legacy 140000-byte delayed-reader timeout and reaped the child. All 28 automation tests and 72 make check tests passed, including complete UTF-8/EOF, submit/timeout descendant cleanup, fresh sessions, scope and snapshots. Reviewed executor message and cumulative patches; git diff --check passed. No Windows, live model or application readiness claim.

Task: S00-012
Agent: auto-qa-04bdb7324ecc
Role: qa
Action: review
Status: done

Task title: Fix runner prompt delivery after partial stdin timeout

state/tasks.json

@@ -1,6 +1,6 @@
 {
   "schema_version": 1,
-  "revision": 34,
+  "revision": 35,
   "tasks": {
     "S00-001": {
       "status": "done",
@@ -15,18 +15,16 @@
       "completed_at": "2026-10-14T18:03:56+00:00"
     },
     "S00-002": {
-      "status": "blocked",
+      "status": "review",
       "owner": "auto-orchestrator-68a05c587e33",
       "started_at": "2026-10-14T18:11:33+00:00",
-      "reason": "Reviewer startup hangs waiting for stdin EOF: runner retries communicate(None) after a .2s partial-write timeout. Reproduced with delayed stdin reader and 80000-byte payload on Python 3.9.6; no S00-002 acceptance review was performed.",
-      "updated_at": "2026-10-14T18:24:59+00:00",
-      "blocked_by": [
-        "S00-012"
-      ],
+      "reason": null,
+      "updated_at": "2026-10-14T19:03:50+00:00",
+      "blocked_by": [],
       "resume_status": "review",
       "blocker_report": "state/blockers/S00-012.md",
       "handoff": "state/handoffs/S00-002.md",
-      "previous_owner": "auto-orchestrator-3a4f07103316",
+      "previous_owner": "auto-orchestrator-68a05c587e33",
       "resumed_after_blocker": true,
       "evidence": "state/evidence/S00-002-auto-orchestrator-68a05c587e33.md"
     },
@@ -1136,19 +1134,22 @@
       "completed_at": "2026-10-14T18:11:33+00:00"
     },
     "S00-012": {
-      "status": "review",
+      "status": "done",
       "owner": "auto-ci-cd-f101e40d9902",
       "external_wait": false,
       "reason": null,
       "started_at": "2026-10-14T18:48:36+00:00",
-      "updated_at": "2026-10-14T19:01:28+00:00",
+      "updated_at": "2026-10-14T19:03:50+00:00",
       "blocked_by": [],
       "resume_status": "review",
       "blocker_report": "state/blockers/S00-015.md",
       "handoff": "state/handoffs/S00-012.md",
       "previous_owner": "auto-ci-cd-f101e40d9902",
       "resumed_after_blocker": true,
-      "evidence": "state/evidence/S00-012-auto-ci-cd-f101e40d9902.md"
+      "evidence": "state/evidence/S00-012-auto-ci-cd-f101e40d9902.md",
+      "reviewer": "auto-qa-04bdb7324ecc",
+      "review_evidence": "state/evidence/S00-012-review.md",
+      "completed_at": "2026-10-14T19:03:50+00:00"
     },
     "S00-013": {
       "status": "done",
@@ -1641,6 +1642,27 @@
       "to": "done",
       "reason": null,
       "evidence": "state/evidence/S00-015-review.md"
+    },
+    {
+      "revision": 35,
+      "at": "2026-10-14T19:03:50+00:00",
+      "action": "auto-unblock",
+      "task": "S00-002",
+      "resolved_by": "S00-012",
+      "to": "review",
+      "fresh_agent_required": true
+    },
+    {
+      "revision": 35,
+      "at": "2026-10-14T19:03:50+00:00",
+      "action": "approve",
+      "task": "S00-012",
+      "agent": "auto-qa-04bdb7324ecc",
+      "role": "qa",
+      "from": "review",
+      "to": "done",
+      "reason": null,
+      "evidence": "state/evidence/S00-012-review.md"
     }
   ],
   "retired_agents": [