chore(mitc4-shell-feast-eigen-execution-prep): preserve blocked attempt 1 metadata

phases/index.json

@@ -26,11 +26,12 @@
     },
     {
       "dir": "mitc4-shell-feast-eigen-execution-prep",
-      "status": "pending"
+      "status": "blocked",
+      "blocked_at": "2026-09-06T10:28:44+0900"
     },
     {
       "dir": "mitc4-shell-feast-eigen",
       "status": "pending"
     }
   ]
-}
+}

phases/mitc4-shell-feast-eigen-execution-prep/index.json

@@ -5,7 +5,7 @@
     {
       "step": 0,
       "name": "bounded-execution-deadlines",
-      "status": "pending",
+      "status": "blocked",
       "owned_paths": [
         "scripts/execute.py",
         ".codex/hooks.json",
@@ -16,7 +16,23 @@
         "tests/test_harness_timeouts.py",
         "docs/HARNESS_WORKFLOW.md",
         "docs/mitc4-shell-feast-eigen/implementation-prep-evidence.md"
-      ]
+      ],
+      "started_at": "2026-09-06T10:04:44+0900",
+      "attempt_history": [
+        {
+          "attempt": 1,
+          "recorded_at": "2026-09-06T10:28:44+0900",
+          "exit_code": 0,
+          "reported_status": "blocked",
+          "reported_reason": "Environment denies the assigned .codex/hooks.json write; registered Stop timeout remains 1800 instead of required 7500.",
+          "classification": "environment",
+          "reason": "Codex Windows sandbox helper를 실행할 수 없습니다.",
+          "diagnostic": "2026-09-06T01:09:28.776688Z ERROR codex_core::tools::router: error=patch rejected: writing outside of the project; rejected by user approval settings\n2026-09-06T01:09:49.032848Z ERROR codex_core::tools::router: error=patch rejected: writing outside of the project; rejected by user approval settings\n2026-09-06T01:10:02.403178Z ERROR codex_core::tools::router: error=patch rejected: writing outside of the project; rejected by user approval settings"
+        }
+      ],
+      "blocked_reason": "Codex Windows sandbox helper를 실행할 수 없습니다.",
+      "blocked_at": "2026-09-06T10:28:44+0900"
     }
-  ]
+  ],
-}
+  "created_at": "2026-09-06T10:04:44+0900"
+}