feat: improve mode and peripheral orchestration

tests/unit/test_can1_semantic_whitelist.py

@@ -724,6 +724,50 @@ class Can1SemanticWhitelistTests(unittest.TestCase):
         self.assertEqual(preview["unresolved_clauses"], [])
         self.assertEqual(self._debug_commands(preview), [])
 
+    def test_driver_ventilation_numeric_gear_followup_uses_occupant_scale(self) -> None:
+        cases = (
+            (
+                "打开主驾座椅通风，挡位调到3档",
+                "seat driver vent high",
+                1,
+            ),
+            (
+                "打开主驾座椅通风，挡位调到1档",
+                "seat driver vent low",
+                2,
+            ),
+        )
+        for index, (utterance, command, internal_level) in enumerate(cases):
+            with self.subTest(utterance=utterance):
+                result = self.service.process(
+                    utterance,
+                    provider="local",
+                    conversation_id=f"conv-driver-vent-gear-{index}",
+                    execution_mode="dry_run",
+                )
+                self.assertEqual(result["status"], "succeeded")
+                self.assertEqual(self._debug_commands(result), [command])
+                operation = result["function_configs"]["native_seat"]["spec"][
+                    "operations"
+                ][0]
+                self.assertEqual(operation["parameters"]["level"], internal_level)
+
+        middle = self.service.process(
+            "打开主驾座椅通风，挡位调到2档",
+            provider="local",
+            conversation_id="conv-driver-vent-gear-middle",
+            execution_mode="dry_run",
+        )
+        self.assertEqual(middle["status"], "needs_confirmation")
+        self.assertEqual(self._debug_commands(middle), [])
+        self.assertIn(
+            "driver_seat_thermal_middle_level_unsupported",
+            {
+                item.get("reason")
+                for item in middle["intent_ir"]["spec"]["ambiguities"]
+            },
+        )
+
     def test_vehicle_position_aliases_stay_scoped_to_the_device_domain(self) -> None:
         cases = (
             ("打开左前车窗", ["window front-left open"]),