Bind the metered owner route to worker leases and sandbox lifecycle

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a07ff8-19d0-7820-b4d0-1353833cb7fc

rein_aharness/glas_execution.py

@@ -10,6 +10,7 @@ from __future__ import annotations
 
 import math
 from collections.abc import Callable
+from contextlib import nullcontext
 from typing import Any
 
 from rein_aharness.execution_cancel import ExecutionCancel, ExecutionCancelled, resolve_cancel
@@ -175,6 +176,11 @@ def execute_profiled_run(
         request = request_factory(**_request_kwargs(run, config, report_to_hub))
         kwargs = {"artifact_capture": transfer.capture} if transfer else {}
         spend = worker_spend(config)
+        owner = config.messages_owner
+        if config.require_request_admission and owner is None:
+            raise SpendAdmissionError("required request owner is not configured")
+        if owner is not None and (spend is None or guard is None):
+            raise SpendAdmissionError("request owner requires spend and cancellation")
         if spend is not None:
             from glas_harness.profiles import ProfileCatalog
             catalog = ProfileCatalog()
@@ -186,7 +192,11 @@ def execute_profiled_run(
             if guard is not None:
                 guard.check()
             spend.reserve(run)
-        result = gateway(request, **kwargs)
+        route = owner.activate(run, config, spend, profile, guard) if owner else nullcontext(None)
+        with route as owner_manager:
+            if owner_manager is not None:
+                kwargs["manager"] = owner_manager
+            result = gateway(request, **kwargs)
         raw = result.model_dump(mode="json") if hasattr(result, "model_dump") else result
     except ExecutionCancelled:
         raise