Add timeline car import and CO2 trip stats

tests/test_trip_page_route.py

@@ -1,6 +1,6 @@
 """Regression tests for trip page route wiring and rendering."""
 
-from datetime import date, datetime
+from datetime import date, datetime, timedelta, timezone
 import typing
 from unittest import mock
 
@@ -307,3 +307,57 @@ def test_trip_page_uses_bed_icon_for_overnight_train_coach() -> None:
             assert response.status_code == 200
             page = response.data.decode()
             assert "🛏️ Coach S, Seat 4" in page
+
+
+def test_trip_page_renders_car_times_in_local_route_timezone() -> None:
+    """Car journeys should display in the route's local timezone."""
+    trip = Trip(
+        start=date(2023, 8, 23),
+        travel=[
+            {
+                "type": "car",
+                "depart": datetime(
+                    2023, 8, 24, 5, 22, tzinfo=timezone(timedelta(hours=1))
+                ),
+                "arrive": datetime(
+                    2023, 8, 24, 6, 26, tzinfo=timezone(timedelta(hours=1))
+                ),
+                "from": "JFK",
+                "to": "Rockaway",
+                "distance": 102.0,
+                "from_location": {
+                    "name": "JFK",
+                    "country": "us",
+                    "latitude": 40.64,
+                    "longitude": -73.78,
+                },
+                "to_location": {
+                    "name": "Rockaway",
+                    "country": "us",
+                    "latitude": 40.907,
+                    "longitude": -74.554,
+                },
+            }
+        ],
+    )
+
+    with web_view.app.app_context():
+        with (
+            mock.patch.object(web_view, "get_trip_list", return_value=[trip]),
+            mock.patch.object(agenda.weather, "get_trip_weather", return_value=[]),
+            mock.patch.object(
+                web_view,
+                "_timezone_from_coordinates",
+                return_value="America/New_York",
+            ),
+        ):
+            web_view.app.config["TESTING"] = True
+
+            with web_view.app.test_client() as client:
+                response = client.get("/trip/2023-08-23")
+
+            assert response.status_code == 200
+            page = response.data.decode()
+            assert "JFK → Rockaway" in page
+            assert "00:22 → 01:26" in page
+            assert "05:22 → 06:26" not in page