rehearsal: ruff production 0 (drop unused agent_def os + server AuthStore imports) and quote 8 unquoted env keys in main-side test tearDowns (latent NameError)

cloud/tests/test_audit_batch2.py

@@ -288,7 +288,7 @@ class CoordGateLookupFailureTestCase(unittest.TestCase):
         if self._old is None:
             os.environ.pop("CODEX_PUSH_ALLOW_PRIVATE_TARGETS", None)
         else:
-            os.environ[CODEX_PUSH_ALLOW_PRIVATE_TARGETS] = self._old
+            os.environ["CODEX_PUSH_ALLOW_PRIVATE_TARGETS"] = self._old
         self.tmp.cleanup()
 
     def test_direct_lookup_raises_instead_of_empty_set(self):