fix(agent): preserve executor boundary runtime proof

apps/api/src/services/executor_trust_boundary_readback.py

@@ -120,18 +120,22 @@ async def load_executor_trust_boundary_readback(
             configmap_name=configmap_name,
         )
     except Exception as exc:  # pragma: no cover - production readback boundary
+        error_status = getattr(exc, "status", None)
+        public_error_type = type(exc).__name__
+        if isinstance(error_status, int):
+            public_error_type = f"{public_error_type}:{error_status}"
         logger.warning(
             "executor_trust_boundary_readback_failed",
             namespace=namespace,
             configmap_name=configmap_name,
-            error_type=type(exc).__name__,
+            error_type=public_error_type,
         )
         payload = build_executor_trust_boundary_readback(
             {},
             deployed_source_sha=deployed_source_sha,
             namespace=namespace,
             configmap_name=configmap_name,
-            error_type=type(exc).__name__,
+            error_type=public_error_type,
         )
     finally:
         if api_client is not None: