Complete map refresh guards and fix the dashboard job embed

worker/main.ts

@@ -105,14 +105,15 @@ async function processJob(job: {
         .single(),
     );
     const manifest = datasetSchema.parse(input.manifest);
-    await progress(0, `Downloading ${manifest.assets.length} export files`);
-    let downloaded = 0;
-    for (const asset of manifest.assets.filter(
+    const assets = manifest.assets.filter(
       (a) =>
         !mapOnly ||
         a.path ===
           (manifest.source === "plugin" ? "terrain.json.gz" : "map.png"),
-    )) {
+    );
+    await progress(0, `Downloading ${assets.length} export files`);
+    let downloaded = 0;
+    for (const asset of assets) {
       if (abort.signal.aborted) throw new Error("Lease lost or cancelled");
       const blob = check(
         await client.storage
@@ -129,8 +130,8 @@ async function processJob(job: {
       await mkdir(path.slice(0, path.lastIndexOf("/")), { recursive: true });
       await writeFile(path, bytes);
       await progress(
-        (20 * ++downloaded) / manifest.assets.length,
-        `Downloaded ${downloaded}/${manifest.assets.length} export files`,
+        (20 * ++downloaded) / assets.length,
+        `Downloaded ${downloaded}/${assets.length} export files`,
       );
     }
     const output = `${directory}/media`;