Match the base branch's bun run docs, correct the state-dir rule

Rebasing onto the updated #4556 turned up two doc drifts: the base moved
the script list from `vp run` to `bun run`, and the state-directory
paragraph still described the fixed `userdata` preference that the mtime
tiebreak replaced.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
e7ac40404fTheo Browne committed on 7/27/2026, 3:38:49 AMparentda233f0
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