S00-028: Record blocked task and remediation handoff

Changes: Preserve incomplete work and blocker metadata for S00-028. This checkpoint does not mark implementation accepted.
Validation: Session ended with status blocked.
Blocker: S00-028 cannot independently validate project filesystem sandbox: installed Codex sandbox exits before command execution because the app-server socket directory must be user-owned with mode 0700. Host socket repair is outside launcher arguments scope.
Automatic blocker limit reached; explicit external resolution required.

Task: S00-028
Agent: auto-ci-cd-211cf3a2bd08
Role: ci-cd
Action: claim
Status: blocked

Task title: Repair conflicting Codex harness sandbox arguments

planning/tasks/S00-028.md

@@ -7,7 +7,7 @@
 - Этап: S00
 - Оператор: ci-cd
 - Reviewer: qa
-- Зависимости: S00-002
+- Зависимости: S00-002, S00-030
 - Требования: инженерная подготовка
 
 ## Один результат