added export gpx

Cargo.lock

@@ -1590,7 +1590,7 @@ dependencies = [
 
 [[package]]
 name = "rs_maps"
-version = "0.3.2"
+version = "0.3.4"
 dependencies = [
  "anyhow",
  "argon2",

Cargo.toml

@@ -1,7 +1,7 @@
 # Cargo.toml
 [package]
 name = "rs_maps"
-version = "0.3.2"
+version = "0.3.4"
 edition = "2021"
 
 [dependencies]

frontend/app.js

@@ -36,9 +36,10 @@ const OVERPASS_ENDPOINTS = [
   'https://overpass.private.coffee/api/interpreter',
 ];
 
-// Past this, move on to the next mirror. A single-object lookup that hasn't
-// answered in 8s isn't going to.
-const OVERPASS_TIMEOUT_MS = 8000;
+// Overpass queues requests when busy — a trivial single-object lookup has been
+// observed taking over a minute before returning a perfectly good 200. 30s is
+// the most that's reasonable to make someone wait; past that, give up quietly.
+const OVERPASS_TIMEOUT_MS = 30000;
 
 const COLOURS = ['#4E9C6B', '#D2467F', '#E2A93C', '#4E8FC9', '#B07BD4', '#D3574B'];
 const DEFAULT_COLOUR = COLOURS[0];
@@ -705,7 +706,9 @@ async function fetchOsmTags(osmType, osmId) {
   const short = OSM_SHORT[osmType];
   if (!short) return null;
 
-  const query = `[out:json][timeout:10];${short}(${osmId});out tags;`;
+  // Server-side budget matched to ours, so it sheds the request rather than
+  // holding it in a queue we've already stopped waiting on.
+  const query = `[out:json][timeout:30];${short}(${osmId});out tags;`;
   let lastError = null;
 
   for (const endpoint of OVERPASS_ENDPOINTS) {
@@ -907,12 +910,11 @@ function showSearchHit(hit) {
           slot.replaceChildren(node);
           more.remove();
         } catch {
+          // Overpass being busy is routine and not worth interrupting anyone
+          // over. The button simply comes back so it can be pressed again;
+          // the reason stays in the console.
           more.disabled = false;
           more.textContent = 'More details';
-          // Every mirror was busy or unreachable. This is a load problem at
-          // their end, not missing data — worth saying so, since retrying in a
-          // minute usually works.
-          toast('OpenStreetMap details are busy — try again shortly', true);
         }
         popup.update();   // re-measure after the content grew
       });
@@ -1108,6 +1110,18 @@ async function loadGpxList() {
     edit.addEventListener('click', () => editRoute(f.name));
     li.appendChild(edit);
 
+    // A plain anchor rather than a fetch-and-blob: same-origin navigation
+    // carries the session cookie, and the browser handles the save dialog,
+    // resumability and large files without any of it passing through JS.
+    const download = document.createElement('a');
+    download.className = 'link';
+    download.textContent = 'Download';
+    download.href = 'api/gpx/file/' + encodeURIComponent(f.name);
+    // Without an explicit filename the browser would name it after the URL's
+    // last segment, which is percent-encoded.
+    download.download = f.name;
+    li.appendChild(download);
+
     list.appendChild(li);
   });
 }