feat: capture worker artifacts before teardown and carry native limits

Assistant: codex
Assistant-Model: gpt-5.6-luna
Assistant-Session: 01a07ff8-19d0-7820-b4d0-1353833cb7fc

src/glas_harness/profiles.py

@@ -178,6 +178,9 @@ class ProfileCatalog:
                 f"gateway supports {CONTRACT_VERSION}"
             )
 
+        if profile.limits.max_budget_usd is not None and profile.rein.id != "rein-aharness":
+            raise IncompatibleProfileError("native USD limits are implemented only by rein-aharness")
+
         descriptor = self.reins().get(profile.rein.id)
         if descriptor is None:
             raise IncompatibleProfileError(