fix(web): show Codex fast mode as a bolt

[PixPMusic]

Summary

• extend feat(web): show fast mode as a bolt instead of a "Normal" label #4488’s compact fast-mode indicator to Codex service tiers
• hide Standard from the joined trigger label and show the bolt when Fast is selected
• preserve labels for distinct tiers such as Flex and keep single-trait fallbacks readable
• derive the fast-mode state from provider descriptors and cover the Codex cases with regression tests

Verification

• pnpm exec vp test run apps/web/src/components/chat/TraitsPicker.test.ts — 9 tests passed
• pnpm --filter @t3tools/web typecheck
• targeted formatting and lint checks for the two changed files
• isolated web verification with GPT-5.6-Sol: Fast renders the bolt beside Medium; Standard renders only Medium

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Note

Low Risk
UI-only label/icon logic in the chat traits trigger with unit test coverage; no auth, API, or persistence changes.

Overview
Extends the traits picker trigger so Codex serviceTier (Standard/Fast) uses the same compact fast-mode UX as the boolean fastMode trait: Standard is omitted from the joined label, Fast shows the bolt instead of text, and tiers like Flex still appear in the label.

buildTraitsTriggerDisplay now infers fast-mode state from provider descriptors (boolean or Standard/Fast service tier) instead of taking a separate fastModeEnabled argument; when service tier is the only trait, it still falls back to readable Standard / Fast text without the icon.

Regression tests cover Codex service-tier label and bolt behavior alongside existing Claude fast-mode cases.

^{Reviewed by Cursor Bugbot for commit 7046624. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Show bolt icon for Codex Fast service tier in TraitsPicker

• buildTraitsTriggerDisplay now infers fast-mode state from two sources: a boolean fastMode descriptor, or a serviceTier select where "Fast" shows the bolt and "Standard" hides it.
• Non-fast/non-standard tiers (e.g. Flex) contribute their label to the traits list instead of triggering the bolt.
• getSelectedTraits no longer returns fastModeEnabled; fast-mode detection is fully delegated to buildTraitsTriggerDisplay.
• Behavioral Change: callers that previously consumed fastModeEnabled from getSelectedTraits must now rely on buildTraitsTriggerDisplay to determine fast-mode state.

^{Macroscope summarized 7046624.}

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[macroscopeapp]

Approvability

Verdict: Approved

This PR makes a small, well-tested UI display change to show a lightning bolt icon for Codex's fast service tier. The changes are purely presentational, self-contained within the TraitsPicker component, and include comprehensive test coverage.

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