Before: b5a226e49c52ecab4ddc2d678a7012d97e651a6a
Real app: vp run dev; isolated .t3 state; Chromium collaborative browser 1280x800
Attempt 1: chat draft branch selector -> PR 23113 -> Local -> submit minimal OK request
Attempt 2: GitHub PR 23113 detail -> Check out -> In a separate worktree -> submit same OK request
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