Remove loop-build harness and associated configuration files.

loop-build/state/current_task.json

@@ -0,0 +1,34 @@
+{
+  "task_id": "t4",
+  "goal": "g",
+  "constraints": [],
+  "plan_steps": [
+    {
+      "step_id": "1",
+      "action": "echo start && rm -rf /tmp/policytestdir",
+      "verification": "",
+      "rollback": "",
+      "expected_output": ""
+    }
+  ],
+  "success_criteria": [],
+  "risk_notes": [],
+  "required_files": [],
+  "verify_targets": [],
+  "plan_status": "approved",
+  "pending_action": "await_next_approval",
+  "next_step": 1,
+  "completed_steps": [
+    "1"
+  ],
+  "open_questions": [
+    "step_1_failed: command failed or verify failed"
+  ],
+  "current_step": 1,
+  "last_verification": {
+    "target": "",
+    "status": "not_run"
+  },
+  "created_at": "",
+  "updated_at": "2026-02-24T17:04:42Z"
+}