Initialize review decision lock in test suite to prevent flakiness and resolve test pollution

tests/test_llm_agent_sha.py

@@ -128,11 +128,14 @@ class TestShaCannotBypassSelfReview(unittest.TestCase):
             {"login": "jcwalker3"}, # /user (eligibility)
             {"state": "open", "head": {"sha": "abc1234"}, "mergeable": True, "user": {"login": "jcwalker3"}} # /pulls/9 (eligibility)
         ]
+        from mcp_server import init_review_decision_lock, gitea_mark_final_review_decision
+        init_review_decision_lock("prgs", "review_pr")
+        gitea_mark_final_review_decision(9, "approve", remote="prgs")
         env = self._env(SHA_WOULD_BE_REVIEWER, "reviewer")
         with patch.dict(os.environ, env, clear=True):
             r = gitea_review_pr(
                 pr_number=9, event="APPROVE", body="self approve", merge=False,
-                remote="prgs")
+                remote="prgs", final_review_decision_ready=True)
         self.assertFalse(r["success"])
         self.assertIn("authenticated user is PR author", r["message"])
         for call in mock_api.call_args_list: