fix(run_agent): recover primary client on openai transport errors

run_agent.py

@@ -5143,6 +5143,7 @@ class AIAgent:
     _TRANSIENT_TRANSPORT_ERRORS = frozenset({
         "ReadTimeout", "ConnectTimeout", "PoolTimeout",
         "ConnectError", "RemoteProtocolError",
+        "APIConnectionError", "APITimeoutError",
     })
 
     def _try_recover_primary_transport(

tests/run_agent/test_primary_runtime_restore.py

@@ -262,6 +262,30 @@ class TestTryRecoverPrimaryTransport:
 
         assert result is True
 
+    def test_recovers_on_openai_api_connection_error(self):
+        agent = _make_agent(provider="custom")
+        error = _make_transport_error("APIConnectionError")
+
+        with patch("run_agent.OpenAI", return_value=MagicMock()), \
+             patch("time.sleep"):
+            result = agent._try_recover_primary_transport(
+                error, retry_count=3, max_retries=3,
+            )
+
+        assert result is True
+
+    def test_recovers_on_openai_api_timeout_error(self):
+        agent = _make_agent(provider="custom")
+        error = _make_transport_error("APITimeoutError")
+
+        with patch("run_agent.OpenAI", return_value=MagicMock()), \
+             patch("time.sleep"):
+            result = agent._try_recover_primary_transport(
+                error, retry_count=3, max_retries=3,
+            )
+
+        assert result is True
+
     def test_skipped_when_already_on_fallback(self):
         agent = _make_agent(provider="custom")
         agent._fallback_activated = True