S00-015: Record blocked task and remediation handoff

Changes: Preserve incomplete work and blocker metadata for S00-015. This checkpoint does not mark implementation accepted.
Validation: Session ended with status blocked.
Blocker: S00-012 fresh reviewer exited before review because its execution provider returned HTTP 503 and Selected model is at capacity. Provider availability or operator-authorized local harness model configuration is external to S00-015 source scope.

Task: S00-015
Agent: auto-ci-cd-5475930af078
Role: ci-cd
Action: claim
Status: blocked

Task title: Устранить прерывание: Fix runner prompt delivery after partial stdin timeout

planning/TASK_MATRIX.md

@@ -1,6 +1,6 @@
 # Матрица задач
 
-Generated; state revision **25**. Canonical status: state/tasks.json.
+Generated; state revision **27**. Canonical status: state/tasks.json.
 
 | ID | Этап | Оператор | Reviewer | Статус | Owner | Зависимости | Задача |
 | --- | --- | --- | --- | --- | --- | --- | --- |
@@ -17,7 +17,8 @@ Generated; state revision **25**. Canonical status: state/tasks.json.
 | [S00-012](tasks/S00-012.md) | S00 | ci-cd | qa | blocked | auto-ci-cd-f101e40d9902 | S00-001, S00-011, S00-013, S00-014, S00-015 | Fix runner prompt delivery after partial stdin timeout |
 | [S00-013](tasks/S00-013.md) | S00 | ci-cd | qa | done | auto-ci-cd-5f68f03dd33b | S00-001, S00-011 | Bound oversized S21-006 runner context without truncating requirements |
 | [S00-014](tasks/S00-014.md) | S00 | ci-cd | qa | done | auto-ci-cd-14343249da62 | S00-001, S00-011, S00-013 | Fix repeated runner cleanup after a submitted parent is reaped |
-| [S00-015](tasks/S00-015.md) | S00 | ci-cd | qa | todo |  | S00-001, S00-011, S00-013, S00-014 | Устранить прерывание: Fix runner prompt delivery after partial stdin timeout |
+| [S00-015](tasks/S00-015.md) | S00 | ci-cd | qa | blocked | auto-ci-cd-5475930af078 | S00-001, S00-011, S00-013, S00-014, S00-016 | Устранить прерывание: Fix runner prompt delivery after partial stdin timeout |
+| [S00-016](tasks/S00-016.md) | S00 | ci-cd | qa | blocked |  | S00-001, S00-011, S00-013, S00-014 | Restore reviewer model availability after provider capacity failure |
 | [S00-010](tasks/S00-010.md) | S00 | qa | orchestrator | todo |  | S00-001, S00-002, S00-003, S00-004, S00-005, S00-006, S00-007, S00-008, S00-009 | Gate: Профиль и проверка стека |
 | [S01-001](tasks/S01-001.md) | S01 | orchestrator | security | todo |  | S00-010 | Описать identity/model contracts |
 | [S01-002](tasks/S01-002.md) | S01 | orchestrator | security | todo |  | S00-010, S01-001 | Описать async account context |