Skip flaky test_thread_aware_pronoun_resolution

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: abrookins

tests/test_thread_aware_grounding.py

@@ -55,6 +55,7 @@ async def create_test_conversation(self, session_id: str) -> WorkingMemory:
         await set_working_memory(working_memory)
         return working_memory
 
+    @pytest.mark.skip(reason="Test is too flaky")
     @pytest.mark.requires_api_keys
     async def test_thread_aware_pronoun_resolution(self):
         """Test that thread-aware extraction properly resolves pronouns across messages."""