bug(review): RDD pre-delivery preflight's fixed 10 s bound is shorter than native assess on Windows, so every push is denied #3200

Summary

The RDD pre-delivery guard denies every git push on Windows with "The bounded preflight was cancelled or timed out." The preflight has a fixed 10 s bound (lib/review-delivery-preflight.ts:28, AbortSignal.timeout(10_000)) shared by gentle-ai review mode status, two git rev-parse and gentle-ai review assess --committed-only --json. On this machine assess alone takes longer than the bound, so delivery is impossible while RDD is on.

Evidence (gentle-pi 4.7.0-main.abf73dc4c25c, Windows 11, Git Bash)

• gentle-ai review mode status --cwd . : 0.44 s.
• gentle-ai review assess --cwd . --base-ref <sha> --committed-only --json : 22.3 s on a clean linked worktree (131 changed lines, 0 untracked files, 2 ignored entries).
• git status --porcelain : 0.32 s.
• The gentle_review assess tool call on the same worktree recorded durationMs: 19383.
• Four push attempts with tool timeouts of 90-300 s were each denied about 11-13 s after submission.
• The same denial appeared in three other repositories the same day.

Expected

A push is not denied only because assess is slow: either the bound is configurable or sized for a normal assess, or a fresh assessment from the same session (same base and HEAD) is reused instead of re-running it inside the bound.

Workaround

gentle-ai review mode disable --scope clone.