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

planning/stages/S00.md

@@ -34,8 +34,8 @@
 - [S00-027](../tasks/S00-027.md): Restore approved npm registry connectivity for the OMEMO2 backend investigation — ci-cd; done.
 - [S00-028](../tasks/S00-028.md): Repair conflicting Codex harness sandbox arguments — ci-cd; blocked.
 - [S00-029](../tasks/S00-029.md): Record an approved browser OMEMO backend sourcing strategy — orchestrator; blocked.
-- [S00-030](../tasks/S00-030.md): Provide a valid Codex sandbox app-server socket directory — ci-cd; blocked.
-- [S00-031](../tasks/S00-031.md): Supply a verified private Codex app-server socket environment — ci-cd; review.
+- [S00-030](../tasks/S00-030.md): Provide a valid Codex sandbox app-server socket directory — ci-cd; todo.
+- [S00-031](../tasks/S00-031.md): Supply a verified private Codex app-server socket environment — ci-cd; done.
 - [S00-010](../tasks/S00-010.md): Gate: Профиль и проверка стека — qa; todo.
 
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