Alternative for PR search

[shirelmr]

Modified code for these issues.
#11778

[Copilot]

Pull Request Overview

This PR replaces branch discovery logic that relied on searching pull requests by title with a direct PR number-based approach. The change eliminates complex search algorithms that could fail when multiple PRs contained similar keywords in their titles.

• Replaced --branch option with --pr-number option for both update and validate commands
• Removed complex PR search logic that matched titles against service labels or paths
• Simplified branch resolution to directly fetch PR details using the provided PR number

[danieljurek]

This looks good to me. I'd like to do a round of practical testing before approving.

[danieljurek]

Practical testing reveals that the token issued to the GH CLI does NOT Have permission to push commits to forked repos via the API.

Possible solutions:

1. Put changes on the filesystem and let other parts of the system push OR
2. Clone (possibly sparse) in a temporary location, commit, push via the user's global git credentials (only works locally)

[maririos]

not sure I understand this message. The user can't create a PR so the tool is going to create it for them?

[github-actions]

Hi @shirelmr. Thank you for your interest in helping to improve the Azure SDK experience and for your contribution. We've noticed that there hasn't been recent engagement on this pull request. If this is still an active work stream, please let us know by pushing some changes or leaving a comment. Otherwise, we'll close this out in 7 days.

[github-actions]

Hi @shirelmr. Thank you for your contribution. Since there hasn't been recent engagement, we're going to close this out. Feel free to respond with a comment containing /reopen if you'd like to continue working on these changes. Please be sure to use the command to reopen or remove the no-recent-activity label; otherwise, this is likely to be closed again with the next cleanup pass.