## Problem
The `Comment PR Artifacts` workflow consistently times out before the
`PR Build Validation` run can complete. The build pipeline typically
takes 14–25 minutes (especially the Tauri macOS build), but the comment
workflow only polled for ~12 minutes (30 attempts × 10-second intervals
plus API overhead).
This has been causing the `comment` check to fail on every PR — see PR
#463 where it failed 3 consecutive times.
## Fix
- Increase polling attempts from **30 → 90**
- Increase sleep interval from **10s → 20s**
- Effective maximum wait: ~30 minutes of sleep + API overhead ≈ 45+
minutes total
This gives ample headroom for the full build matrix to complete,
including slower runners like `build-tauri-macos`.
## Why this needs to merge first
The `comment-pr-artifacts.yml` workflow uses `pull_request_target`,
which means it runs **from the base branch (dev)**, not the PR branch.
Changes to this file in PR #463 cannot take effect until this fix lands
on `dev`. Once merged, the comment workflow will stop timing out on PR
#463 and all future PRs.
---
_This PR was created by an AI agent (OpenHands) on behalf of the user to
unblock PR #463._
Co-authored-by: openhands <openhands@all-hands.dev>
