feat(n7web): add pet settings and day night themes

tests/unit/test_frontend_vehicle_state_sync_contract.py

@@ -47,14 +47,16 @@ class FrontendVehicleStateSyncContractTests(unittest.TestCase):
             self.extension_source,
         )
 
-    def test_shared_twin_theme_is_fixed_to_user(self) -> None:
+    def test_shared_twin_theme_tracks_persistent_day_and_night_mode(self) -> None:
         self.assertIn("function applyTwinSceneTheme(", self.app_source)
-        self.assertIn('canvas.dataset.themeRole = "user"', self.app_source)
+        self.assertIn("function currentTwinThemeRole()", self.app_source)
+        self.assertIn("function currentTwinThemePalette()", self.app_source)
+        self.assertIn("canvas.dataset.themeRole = role", self.app_source)
         self.assertIn(
             'canvas.dataset.themeAccent = `#${palette.accent.toString(16).padStart(6, "0")}`',
             self.app_source,
         )
-        for glass_theme_token in (
+        for night_theme_token in (
             "accent: 0x7b70f5",
             "sceneBackground: 0x111426",
             "floor: 0x1a2038",
@@ -64,7 +66,20 @@ class FrontendVehicleStateSyncContractTests(unittest.TestCase):
             "glass: 0x4d8ed2",
             "lamp: 0x4385cf",
         ):
-            self.assertIn(glass_theme_token, self.app_source)
+            self.assertIn(night_theme_token, self.app_source)
+        for day_theme_token in (
+            "accent: 0x2f80ed",
+            "sceneBackground: 0xeff6ff",
+            "floor: 0xe5f0fd",
+            "vehicleBody: 0x91c6f5",
+            "vehicleOutline: 0x2879d8",
+            "seatShell: 0x2b76c9",
+            "glass: 0x4b9bea",
+            "lamp: 0x2e7fd4",
+        ):
+            self.assertIn(day_theme_token, self.app_source)
+        self.assertIn('"cognitive-agent:theme-change"', self.app_source)
+        self.assertIn("applyTwinReferenceVehicleTheme(twin.referenceVehicle, palette)", self.app_source)
         self.assertNotIn("accent: 0x0e7773", self.app_source)
         self.assertNotIn("cognitive-agent:demo-role-change", self.app_source)