Fix remote portal map tiles and geocode

- history.js reads tile URL from data-tile-url attribute on #history-map div,
  falling back to local offline tiles (Pi behavior unchanged)
- server history.html sets data-tile-url to live OSM tiles
- maxZoom raised to 19 (OSM supports it, local tiles were limited to 15)
- server geocode returns 'label' key to match what history.js/yaris.js expect

Co-authored-by: Copilot <[email protected]>

static/js/history.js

@@ -10,11 +10,14 @@
     const playButton = document.getElementById("trip-play");
     const replayTime = document.getElementById("trip-replay-time");
     const replaySpeed = document.getElementById("trip-replay-speed");
-    const map = L.map("history-map", { minZoom: 8, maxZoom: 15 }).setView([48.505, -0.09], 12);
-    const tiles = L.tileLayer("/static/vendor/tiles/{z}/{x}/{y}.png", {
-        minZoom: 8,
-        maxZoom: 15,
-        attribution: "© MapTiler © OpenStreetMap contributors",
+    const mapEl = document.getElementById("history-map");
+    const tileUrl = mapEl.dataset.tileUrl || "/static/vendor/tiles/{z}/{x}/{y}.png";
+    const tileAttrib = mapEl.dataset.tileAttrib || "© MapTiler © OpenStreetMap contributors";
+    const map = L.map("history-map", { minZoom: 3, maxZoom: 19 }).setView([48.505, -0.09], 12);
+    const tiles = L.tileLayer(tileUrl, {
+        minZoom: 3,
+        maxZoom: 19,
+        attribution: tileAttrib,
     });
     let routeLayer = null;
     let vehicleMarker = null;