fix(app): keep the project icon out of Command Center row names

The fallback project icon draws the project's initial as text, which
became the first word of the row's accessible name ("C Command Center
..."), so screen readers announced it. The icon is decorative.

The scroll spec now reads the newest seeded workspace: the empty query
lists the most recent workspaces, so the first one seeded is no longer
among them.

packages/app/e2e/browser/command-center-scroll.spec.ts

@@ -45,7 +45,8 @@ test("opening the command center keeps its first result fully visible", async ({
     await expectCommandCenterToRemainAtTheTop(page);
     await expectPrimaryCommandCenterActions(panel);
     await expectVisibleKeyboardNavigationNotToScroll(page, panel);
-    await expectTightTwoLineResultSpacing(panel, "Command Center Scroll 00");
+    // The empty query lists the most recent workspaces, so the last one seeded leads it.
+    await expectTightTwoLineResultSpacing(panel, "Command Center Scroll 08");
     await expectWorkspaceResultsToBeLimitedUntilSearch(panel);
   } finally {
     await seeded.cleanup();

packages/app/src/command-center/command-center.tsx

@@ -559,7 +559,13 @@ function ResultContent({ result, query }: { result: CommandCenterResult; query:
     return (
       <View style={styles.rowContent} testID={`command-center-workspace-${key}`}>
         <View style={styles.rowMain}>
-          <View style={styles.iconSlot}>
+          {/* Decorative: the fallback icon's initial must not prefix the row's accessible name. */}
+          <View
+            style={styles.iconSlot}
+            accessibilityElementsHidden
+            importantForAccessibility="no-hide-descendants"
+            aria-hidden
+          >
             <WorkspaceProjectIcon project={result.project} />
           </View>
           <View style={styles.textContent}>