S00-031: Approve the independently verified Codex host sandbox diagnostic

Changes: Accept S00-031 with independent QA evidence and handoff; confirm the automation guidance matches the bounded host-context diagnostic.
Validation: Approved host stat verified uid1000/mode0700; inner workspace-write probe exited 0 with project write/read/remove and outside write denial EROFS30. make check passed 72 tests; scope, executor message and git diff --check passed. No model or storage task ran; acceptance covers this host/version and one filesystem boundary.

Task: S00-031
Agent: auto-qa-56c26814c30b
Role: qa
Action: review
Status: done

Task title: Supply a verified private Codex app-server socket environment

state/tasks.json

@@ -1,6 +1,6 @@
 {
   "schema_version": 1,
-  "revision": 99,
+  "revision": 100,
   "tasks": {
     "S00-001": {
       "status": "done",
@@ -1419,28 +1419,31 @@
       "reason": "Pinned libomemo.js@3.0.0 supplies real embedded WASM but is a different unaudited ratchet and excludes consumer SCE; no approved decision reconciles it with S00-022 retained audited engine/persistence requirement."
     },
     "S00-030": {
-      "status": "blocked",
-      "owner": "auto-ci-cd-d37c9faf28f3",
+      "status": "todo",
+      "owner": null,
       "external_wait": false,
-      "reason": "S00-030 no-model sandbox diagnostic still exits 1 before execution with the original socket directory ownership/mode guard, despite XDG_RUNTIME_DIR being user-owned mode 0700. Actual socket directory repair requires host owner input.\nAutomatic blocker limit reached; explicit external resolution required.",
+      "reason": null,
       "started_at": "2026-10-15T10:30:53+00:00",
-      "updated_at": "2026-10-15T10:32:18+00:00",
-      "blocked_by": [
-        "S00-031"
-      ],
+      "updated_at": "2026-10-15T10:44:07+00:00",
+      "blocked_by": [],
       "resume_status": "in_progress",
       "blocker_report": "state/blockers/S00-031.md",
-      "handoff": "state/handoffs/S00-030.md"
+      "handoff": "state/handoffs/S00-030.md",
+      "previous_owner": "auto-ci-cd-d37c9faf28f3",
+      "resumed_after_blocker": true
     },
     "S00-031": {
-      "status": "review",
+      "status": "done",
       "owner": "auto-ci-cd-d45ccd3ee7d6",
       "external_wait": false,
       "reason": null,
       "started_at": "2026-10-15T10:38:13+00:00",
-      "updated_at": "2026-10-15T10:41:56+00:00",
+      "updated_at": "2026-10-15T10:44:07+00:00",
       "evidence": "state/evidence/S00-031-auto-ci-cd-d45ccd3ee7d6.md",
-      "handoff": "state/handoffs/S00-031.md"
+      "handoff": "state/handoffs/S00-031.md",
+      "reviewer": "auto-qa-56c26814c30b",
+      "review_evidence": "state/evidence/S00-031-review.md",
+      "completed_at": "2026-10-15T10:44:07+00:00"
     }
   },
   "events": [
@@ -2685,6 +2688,27 @@
       "to": "review",
       "reason": null,
       "evidence": "state/evidence/S00-031-auto-ci-cd-d45ccd3ee7d6.md"
+    },
+    {
+      "revision": 100,
+      "at": "2026-10-15T10:44:07+00:00",
+      "action": "auto-unblock",
+      "task": "S00-030",
+      "resolved_by": "S00-031",
+      "to": "todo",
+      "fresh_agent_required": true
+    },
+    {
+      "revision": 100,
+      "at": "2026-10-15T10:44:07+00:00",
+      "action": "approve",
+      "task": "S00-031",
+      "agent": "auto-qa-56c26814c30b",
+      "role": "qa",
+      "from": "review",
+      "to": "done",
+      "reason": null,
+      "evidence": "state/evidence/S00-031-review.md"
     }
   ],
   "retired_agents": [