storage-cors-4: record durable gate, build and closure

docs/agents/backlog/storage-cors-4.json

@@ -1,10 +1,12 @@
 {
- "id": "storage-cors-4",
- "area": "storage-cors",
- "status": "in-progress",
- "title": "Prevent obsolete registered feed completions restoring deleted or replaced DOM",
- "blockedOn": null,
- "addedOn": "2026-10-22",
- "filedAt": "89f8923c6e83b79a2b8874f811cdff2af6a809d0",
- "brief": "docs/agents/prompts/storage-cors.md"
+  "id": "storage-cors-4",
+  "area": "storage-cors",
+  "status": "done",
+  "title": "Prevent obsolete registered feed completions restoring deleted or replaced DOM",
+  "blockedOn": null,
+  "addedOn": "2026-10-22",
+  "filedAt": "89f8923c6e83b79a2b8874f811cdff2af6a809d0",
+  "brief": "docs/agents/prompts/storage-cors.md",
+  "closedOn": "2026-10-22",
+  "landedSha": "7edc7ea86f33508bb790a12d802daa3af012f933"
 }

test_logs/TEST_LOG_2026-10-22_20-58-00_storage-cors-4-landed.md

@@ -0,0 +1,9 @@
+- START exclusive full/normal slot20:52:16Z after dispatch grant20:52:02Z. Merged current unstabled04d501e into cleanb21ce86c; merged candidate888807baf6d91da37b9abcadc7d81b29f4814eca.
+- `env -u NODE_TEST_CONTEXT -u UNIT_TEST_SHARD -u UNIT_TEST_TIMEOUT_MS node tools/fleet/bin/landq.mjs submit --area storage-cors` exit0,submission888807ba. Sandbox autodraindied before processing; durable statusqueued/alivefalse. Approved env-cleared host `fleet.mjs lander start` launched same submission20:52:39Z; no resubmit/gate bypass.
+- Durable land_status state landed/landedSha7edc7ea86f33508bb790a12d802daa3af012f933 at20:57:23.749Z; saved result confirms unchanged normal gateexit0. Normal discovery436unique files,new suite included,quarantineempty. Full per-test-start transcript is not retained by lander (only combined output tail); do not claim independent436start audit. Gate result is authoritative unchanged discovery/runner success.
+- `git log -1 unstable` printedd9424fb7 (docs-only client9 descendant of7edc7ea8); `git merge-base --is-ancestor888807ba unstable` exit0. Fast-forward own branch tod9424fb7; product/tests/scripts/package diff vs7edc7ea8 empty.
+- Health20:53:34 max74C/memoryavailable65.9%;20:57:42 max60.9C/memoryavailable65.8%,swap51% advisory. No competing heavy/browser work started. Slot wait20:46:48→20:52:02=5m14s; no resource threshold pause.
+- Sequential `env -u NODE_TEST_CONTEXT -u UNIT_TEST_SHARD -u UNIT_TEST_TIMEOUT_MS npm run build` exit0 after gate,source d9424fb7; deployment artifact verifierPASS. Artifact version29cbe6f0 is not Git SHA. Log /tmp/storage4-build.log. No server/preview replacement/deploy performed.
+- Focused5files/new16pass,9restored killedmutants,lint11exit0 retained in20:45log/integrity. No duplicate local full. All normal assertions/discovery/gates preserved.
+- Closedstorage4 after durable status+ancestry. Heavy slot released~20:58UTC; no native browser held. No further storage item routed; IDLE. Dispatch integrates shared TODO status.
+- Unverified: native browser/full app navigation/auth teardown/live relay/signature/moderation timing/cloud/manual release. JSDOM lifecycle and controlled IO are not production qualification. Existing coordinator caller behavior and skipped-history-runtime choice in unique decisions note.

todo/TODO_2026-10-22_20-58-00_storage-cors-4-closed.md

@@ -0,0 +1,4 @@
+- [x] Coordinator-only productb21ce86c,merged888807ba; focused5/new16,nine restored mutants,lint11.
+- [x] Unchanged normalgateexit0; durable7edc7ea8,ancestry0; discovery436 unique (not independent starts audit).
+- [x] Sequential buildd9424fb7/artifact29cbe6f0exit0;close4;resourcesreleased.
+- [ ] Dispatch integration of shared TODO/preview; native/full-router/live/manual qualification remains outside slice. No new optional item.