[teamleaderleo]

Fixes a feat-cmux-next base red. #20592 added webviews/test/claude-reasoning-default.test.ts, which starts a Vite dev server without warming it. As a result, bun run check fails at check:browser-lanes and makes react-apps-check red for every web PR.

This adds one warmViteServer(vite, "/gallery/frame.html") call after listen(), the same as the other gallery-dev browser tests (composer-capture, changes-review-threads). The assertions are unchanged.

Red: on base 82e0e8c, bun run check:browser-lanes fails:
test/claude-reasoning-default.test.ts: starts a Vite dev server without warming it.

Green: on this head, same Linux builder:

• check:browser-lanes passes.
• bun run check passes.
• CMUX_BROWSER_TESTS=1 bun test test/claude-reasoning-default.test.ts passes 2 of 2.

Changelog

none

🤖 Generated with Claude Code

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Summary by cubic

Fixes a red base on feat-cmux-next by warming the Vite dev server in the claude-reasoning-default webview test.

#20592 added this test without the warmViteServer(vite, "/gallery/frame.html") call that other gallery-dev browser tests use, so bun run check failed at check:browser-lanes. This adds the missing call after listen(); assertions are unchanged.

^{Written for commit 276fb7d. Summary will update on new commits.}

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[teamleaderleo]

Bead cx-ukk7e created for this PR by the cmux coordinator.

[teamleaderleo]

Duplicate of #20884 (landed as a49002b), which adds the same warmViteServer call. Closing.