feat: improve qwen zerogpu ux

Co-authored-by: Codex <noreply@openai.com>

analyzer.py

@@ -196,9 +196,11 @@ def analyze_trace_file(
                     token=hf_token,
                 )
             except Exception as exc:
+                error_message = str(exc).strip().rstrip(".")
                 result.model_notes.append(
                     "Model assist was requested but unavailable: "
-                    f"{type(exc).__name__}: {exc}. Deterministic analysis was returned."
+                    f"{type(exc).__name__}: {error_message}. "
+                    "Deterministic analysis was returned."
                 )
             else:
                 result.engine = f"deterministic-codebook + {assist.model_id}"

tests/test_model_runtime.py

@@ -76,6 +76,17 @@ class ModelRuntimeTests(unittest.TestCase):
         self.assertTrue(result.model_notes)
         self.assertIn("Unknown analysis engine", result.model_notes[0])
 
+    def test_analyzer_model_error_note_avoids_double_period(self) -> None:
+        with patch("analyzer.run_model_assist", side_effect=ValueError("needs login.")):
+            result, _ = analyze_trace_file(
+                Path("examples/sample_trace_redacted.jsonl"),
+                analysis_engine="qwen",
+            )
+
+        self.assertTrue(result.model_notes)
+        self.assertNotIn("..", result.model_notes[0])
+        self.assertIn("ValueError: needs login.", result.model_notes[0])
+
     def test_analyzer_passes_hf_token_to_model_assist(self) -> None:
         with patch("analyzer.run_model_assist") as run_model_assist:
             run_model_assist.return_value = types.SimpleNamespace(