feat(#1470): node-detail map inset honors customizer dark-tile provider

Follow-up to #1430. The node-detail inset map previously hardcoded OSM
light tiles, ignoring the customizer dark-tile pick.

- Add _applyTilesToNodeMap helper in nodes.js (single source of truth
  for the inset map's tile layer)
- Wire the helper into the 2 call-sites that render the inset map
- Add getActiveTileProvider() to roles.js and route getTileUrl() through
  MC_TILE_PROVIDERS so the inset reads from the same registry as the
  main map
- Apply CSS invert filter for inverted provider variants

public/nodes.js

@@ -74,6 +74,29 @@
   let wsHandler = null;
   let detailMap = null;
 
+  // #1461 followup: node-detail inset map tile layer that honors the
+  // customizer dark-tile-provider pick (#1420/#1430). Falls back to
+  // window.getTileUrl() output if the registry isn't loaded. Also applies
+  // the provider's invert CSS filter to the tile pane when needed.
+  function _applyTilesToNodeMap(map) {
+    if (!map) return;
+    var tileUrl = (window.getTileUrl && window.getTileUrl()) || 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
+    var provider = window.getActiveTileProvider && window.getActiveTileProvider();
+    var attribution = (provider && provider.attribution) || '© OpenStreetMap contributors';
+    var layer = L.tileLayer(tileUrl, { maxZoom: 18, attribution: attribution }).addTo(map);
+    // Esri 2-layer provider: add the labels reference overlay too
+    if (provider && provider.refUrl) {
+      try { L.tileLayer(provider.refUrl, { maxZoom: 18 }).addTo(map); } catch (_e) {}
+    }
+    // Apply invert CSS filter to the tile pane if the provider needs it
+    try {
+      var pane = map.getPane && map.getPane('tilePane');
+      if (pane) pane.style.filter = (provider && provider.invertFilter) ? provider.invertFilter : '';
+    } catch (_e) {}
+    return layer;
+  }
+
+
   // ROLE_COLORS loaded from shared roles.js
   const TABS = [
     { key: 'all', label: 'All' },
@@ -676,7 +699,7 @@
         try {
           if (detailMap) { detailMap.remove(); detailMap = null; }
           detailMap = L.map('nodeFullMap', { zoomControl: true, attributionControl: false }).setView([n.lat, n.lon], 13);
-          L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 18 }).addTo(detailMap);
+          _applyTilesToNodeMap(detailMap);
           L.marker([n.lat, n.lon]).addTo(detailMap).bindPopup(n.name || n.public_key.slice(0, 12));
           setTimeout(() => detailMap.invalidateSize(), 100);
         } catch {}
@@ -1524,7 +1547,7 @@
       try {
         if (detailMap) { detailMap.remove(); detailMap = null; }
         detailMap = L.map('nodeMap', { zoomControl: false, attributionControl: false }).setView([n.lat, n.lon], 13);
-        L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 18 }).addTo(detailMap);
+        _applyTilesToNodeMap(detailMap);
         L.marker([n.lat, n.lon]).addTo(detailMap).bindPopup(n.name || n.public_key.slice(0, 12));
         setTimeout(() => detailMap.invalidateSize(), 100);
       } catch {}

public/roles.js

@@ -363,7 +363,35 @@
     var isDark = document.documentElement.getAttribute('data-theme') === 'dark' ||
       (document.documentElement.getAttribute('data-theme') !== 'light' &&
        window.matchMedia('(prefers-color-scheme: dark)').matches);
-    return isDark ? TILE_DARK : TILE_LIGHT;
+    if (!isDark) return TILE_LIGHT;
+    // #1461 followup: honor customizer's dark-tile-provider pick (#1420 / #1430)
+    // when the registry is loaded. Falls back to TILE_DARK if absent.
+    try {
+      if (window.MC_getDarkTileProvider && window.MC_TILE_PROVIDERS) {
+        var id = window.MC_getDarkTileProvider();
+        var p = window.MC_TILE_PROVIDERS[id];
+        if (p && (p.url || p.baseUrl)) {
+          return p.url || p.baseUrl;
+        }
+      }
+    } catch (_e) {}
+    return TILE_DARK;
+  };
+  /* Helper: get the full provider object (for callers that also need the
+   * invertFilter or refUrl/attribution). Returns null when no customizer
+   * provider applies (light mode, or registry not loaded). */
+  window.getActiveTileProvider = function () {
+    var isDark = document.documentElement.getAttribute('data-theme') === 'dark' ||
+      (document.documentElement.getAttribute('data-theme') !== 'light' &&
+       window.matchMedia('(prefers-color-scheme: dark)').matches);
+    if (!isDark) return null;
+    try {
+      if (window.MC_getDarkTileProvider && window.MC_TILE_PROVIDERS) {
+        var id = window.MC_getDarkTileProvider();
+        return window.MC_TILE_PROVIDERS[id] || null;
+      }
+    } catch (_e) {}
+    return null;
   };
 
   // ─── SNR thresholds ───