feat: simulated odometer in trip replay + trip list (continuous across trips)

- Pi route_points: emit per-point odometer (raw OBD value or baseline+prior+within-trip distance)
- Pi get_trip_route: SELECT ODOMETER, compute prior-trips distance + baseline
- Pi list_trips: fallback now starts from baseline (was 0)
- Server get_trip_route: per-point odometer (raw or simulated) with haversine accumulation
- Server list_trips: odo_start/end from baseline + cumulative (was hardcoded None)
- history.js: Odometer line in replay scrubber below speed
- Both history templates: trip-replay-odometer element

modules/app_sql.py

@@ -487,9 +487,12 @@ def list_trips():
                       START_ODOMETER, END_ODOMETER
                FROM trips ORDER BY START_DATETIME ASC"""
         ).fetchall()
-    # If real OBD odometer is available use it; otherwise fall back to cumulative distance
+    # If real OBD odometer is available use it; otherwise fall back to
+    # baseline + cumulative distance (continuous across trips).
+    from modules import app_settings
+    baseline = app_settings._number_value("odometer_baseline", float, 0)
     result = []
-    cumulative_km = 0.0
+    cumulative_km = baseline
     for row in rows:
         dist = row[7] or 0
         start_odo = row[12] if row[12] is not None else round(cumulative_km, 1)
@@ -530,11 +533,19 @@ def get_trip_route(trip_id, max_points=2000):
         if trip is None:
             return None
         rows = conn.execute(
-            """SELECT id, DATETIME, GPSX, GPSY, SPEED
+            """SELECT id, DATETIME, GPSX, GPSY, SPEED, ODOMETER
                FROM tracking WHERE id BETWEEN ? AND ?
                ORDER BY DATETIME ASC, id ASC""",
             (trip[8], trip[9]),
         ).fetchall()
+        prior = conn.execute(
+            """SELECT COALESCE(SUM(DISTANCE_KM), 0)
+               FROM trips WHERE START_DATETIME < ?""",
+            (trip[1],),
+        ).fetchone()
+    from modules import app_settings
+    baseline = app_settings._number_value("odometer_baseline", float, 0)
+    prior_km = prior[0] if prior and prior[0] is not None else 0.0
     return {
         "trip": {
             "id": trip[0],
@@ -546,7 +557,12 @@ def get_trip_route(trip_id, max_points=2000):
             "average_speed_kmh": trip[6],
             "max_speed_kmh": trip[7],
         },
-        "points": app_trip.route_points(rows, max_points=max_points),
+        "points": app_trip.route_points(
+            rows,
+            max_points=max_points,
+            odometer_baseline=baseline,
+            prior_km=prior_km,
+        ),
     }