fix(web): keep the bolt when fast mode is the only trait

apps/web/src/components/chat/TraitsPicker.test.ts

@@ -100,7 +100,7 @@ describe("buildTraitsTriggerDisplay", () => {
     });
     expect(display([serviceTierDescriptor("priority")])).toEqual({
       label: "Fast",
-      showFastModeIcon: false,
+      showFastModeIcon: true,
     });
   });
 
@@ -117,10 +117,10 @@ describe("buildTraitsTriggerDisplay", () => {
     });
   });
 
-  it("falls back to a text label when fast mode is the only trait", () => {
+  it("keeps the bolt alongside the text label when fast mode is the only trait", () => {
     expect(display([fastModeDescriptor(true)])).toEqual({
       label: "Fast",
-      showFastModeIcon: false,
+      showFastModeIcon: true,
     });
     expect(display([fastModeDescriptor(false)])).toEqual({
       label: "Normal",

apps/web/src/components/chat/TraitsPicker.tsx

@@ -473,14 +473,6 @@ export const TraitsMenuContent = memo(function TraitsMenuContentImpl({
   );
 });
 
-/**
- * Build the traits trigger's text label plus whether the fast-mode bolt should
- * render. Claude and Cursor expose fast mode as a boolean, while Codex exposes
- * it through the Standard/Fast service tiers. In either form, fast mode is a
- * lightning bolt when on and nothing at all when off. The one exception is when
- * fast mode is the only trait, where a bare bolt (or bare chevron) would leave
- * the trigger unreadable.
- */
 export function buildTraitsTriggerDisplay(input: {
   provider: ProviderDriverKind;
   descriptors: ReadonlyArray<ProviderOptionDescriptor>;
@@ -526,7 +518,7 @@ export function buildTraitsTriggerDisplay(input: {
   // off an empty label list alone would also catch descriptors that resolved to
   // no label at all, printing a bogus "Normal" for a model without fast mode.
   if (labels.length === 0 && fastModeFallbackLabel !== null) {
-    return { label: fastModeFallbackLabel, showFastModeIcon: false };
+    return { label: fastModeFallbackLabel, showFastModeIcon: fastModeEnabled };
   }
   return { label: labels.join(" · "), showFastModeIcon: fastModeEnabled };
 }