fix(osm): stop using public Overpass by default (#648) (#742)

Traffic roads come from OpenFreeMap vector tiles, or TomTom flow tiles with a
key (Hybrid by default). Military areas use OpenFreeMap polygons with a bundled
worldwide name index; wide views show named points. ALPR reads an hourly
OpenStreetMap extract. Cockpit place context and country, state and US county
outlines use bundled Natural Earth and US Census data. Overpass is used only
when an operator configures their own endpoint.

Also: camera arrivals no longer land below ground, keyless terrain retries on
429, bounded relation geometry for configured Overpass, one shared
OpenStreetMap credit, and separate tile and API transports for embedders.

Co-authored-by: theGaryLarson <[email protected]>
Co-authored-by: Milan Khanal <[email protected]>

src/ui/shellFeedback.js

@@ -23,6 +23,8 @@ export class ShellFeedback {
         null;
     this._loadingVisibilityHandler = null;
     this._lastLoadingFeedbackUpdateAt = 0;
+    this._lastTrafficChipUpdateAt = 0;
+    this._lastTrafficGlobalUpdateAt = 0;
     this._globalLoadingStatus = document.getElementById(
       'global-loading-status',
     );
@@ -74,7 +76,10 @@ export class ShellFeedback {
     // the flap keeps textContent equal to the settled label throughout, so
     // this stays a no-op on the repeat ticks exactly as it did before.
     if (presentation.label)
-      setSplitFlapText(this._trafficSyncLabel, presentation.label);
+      setSplitFlapText(this._trafficSyncLabel, presentation.label, {
+        // Completion is a timing signal, not another animated loading stage.
+        immediate: !presentation.busy,
+      });
     // Written on every change INCLUDING the empty settled value — the reducer
     // clears the progress number once the sync lands, and a truthiness guard
     // here would strand the last "..." beside the settled label.
@@ -142,9 +147,20 @@ export class ShellFeedback {
     if (this._trafficChipTicker) return;
     this._trafficChipTicker = setInterval(() => {
       if (document.hidden) return;
-      this._updateTrafficSyncChip();
-      this._updateGlobalLoadingFeedback();
-    }, 500);
+      const now = performance.now();
+      // Poll busy traffic promptly; retain the idle/global 500 ms read budget.
+      if (
+        this._trafficSyncFeedbackState.busy ||
+        now - this._lastTrafficChipUpdateAt >= 500
+      ) {
+        this._lastTrafficChipUpdateAt = now;
+        this._updateTrafficSyncChip(false, now);
+      }
+      if (now - this._lastTrafficGlobalUpdateAt >= 500) {
+        this._lastTrafficGlobalUpdateAt = now;
+        this._updateGlobalLoadingFeedback(now);
+      }
+    }, 100);
   }
 
   _armLoadingFeedbackTicker() {