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/tasks.json

@@ -851,7 +851,8 @@
         "S00-001",
         "S00-011",
         "S00-013",
-        "S00-014"
+        "S00-014",
+        "S00-016"
       ],
       "requirements": [],
       "scope": [
@@ -886,6 +887,59 @@
       ],
       "context_budget_chars": 48000
     },
+    {
+      "id": "S00-016",
+      "stage": "S00",
+      "kind": "blocker",
+      "root_task": "S00-002",
+      "blocker_depth": 3,
+      "unblocks": [
+        "S00-015"
+      ],
+      "role": "ci-cd",
+      "reviewer_role": "qa",
+      "title": "Restore reviewer model availability after provider capacity failure",
+      "outcome": "A verified available tool-capable fresh reviewer execution path after explicit external provider/configuration readiness, without bypassing S00-012 independent review.",
+      "depends_on": [
+        "S00-001",
+        "S00-011",
+        "S00-013",
+        "S00-014"
+      ],
+      "requirements": [],
+      "scope": [
+        "scripts/runner.py",
+        "tests/tooling/test_automation.py"
+      ],
+      "inputs": [
+        "docs/WEB_PROFILE.md",
+        "docs/ARCHITECTURE.md",
+        "docs/CONTRACTS.md",
+        "docs/TESTING.md",
+        "roles/orchestrator.md",
+        "docs/decisions/README.md",
+        "state/blockers/S00-012.md",
+        "state/blockers/S00-015.md",
+        "state/blockers/S00-016.md"
+      ],
+      "spec_sections": [],
+      "ui_sections": [],
+      "steps": [
+        "Obtain coordinator confirmation that the configured reviewer model is available or an available replacement is explicitly authorized and locally configured; do not put credentials in evidence.",
+        "After external release, verify the readiness condition using the coordinator-authorized harness in a fresh process; do not retry indefinitely.",
+        "Record actual readiness evidence and submit remediation for independent review; leave S00-012 acceptance to its subsequent fresh reviewer."
+      ],
+      "acceptance": [
+        "Provider/configuration readiness is explicitly supplied by the coordinator.",
+        "A fresh tool-capable reviewer execution path succeeds without the recorded startup capacity/503 failure.",
+        "S00-012 is not accepted or bypassed by the remediation."
+      ],
+      "checks": [
+        "Inspect failed reviewer run evidence for the exact external failure.",
+        "Record actual authorized fresh harness startup result after external readiness; do not claim unavailable checks passed."
+      ],
+      "context_budget_chars": 48000
+    },
     {
       "id": "S00-010",
       "stage": "S00",