Fix header funds flicker and unify settings page top bar.

Preserve SSR fund values when account_snapshot returns null, retry on failure, and show the same instance header panel on system settings.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/common/static/instance_embed.js

@@ -99,6 +99,9 @@
       if (typeof global.initStatsSegmentFromUrl === "function") global.initStatsSegmentFromUrl();
     }
     if (!revisit) {
+      if (typeof global.refreshAccountSnapshot === "function") {
+        global.refreshAccountSnapshot({ silent: true });
+      }
       if (typeof global.refreshPriceSnapshotConditional === "function") {
         global.refreshPriceSnapshotConditional();
       }
@@ -240,7 +243,7 @@
 
   function syncShellChrome(tab) {
     const onSettings = tab === "settings";
-    document.querySelectorAll(".instance-header-panel, .instance-top-bar").forEach((el) => {
+    document.querySelectorAll(".instance-top-bar").forEach((el) => {
       el.hidden = onSettings;
     });
   }