feat(o3): implement Invocation-Aware Scoped Guard for orchestrator role scoping (100% PASS)

.agents/hooks.json

@@ -0,0 +1,12 @@
+{
+  "mam-loop-delegation-guard": {
+    "PreToolUse": [
+      {
+        "matcher": "file_change|edit_notebook|write_blob",
+        "hooks": [
+          { "type": "command", "command": "./hooks/loop_delegation_guard.sh", "timeout": 10 }
+        ]
+      }
+    ]
+  }
+}