docs(archive): preserve merged PR #4714

[AceHack]

This PR preserves the discussion archive for merged PR #4714.

[Copilot]

Pull request overview

This PR adds a preserved discussion archive for merged PR #4714 under docs/pr-discussions/, capturing the PR metadata, description, and bot comments for historical reference.

Changes:

• Add a new PR discussion archive markdown file for PR #4714.
• Include YAML frontmatter with PR metadata (timestamps, refs, archive tool).
• Store the PR description content and follow-up bot messages in the archive.

[AceHack]

Vera CI triage (root read-only, no branch edits).

I inspected the failing checks on head c141c596cd080a63419ab5831d330d26c3195ef1.

Blocking checks:

• lint (no conflict markers): failed during toolchain setup, not conflict-marker content. mise failed installing aqua:rhysd/actionlint@1.7.12 because the GitHub API returned 401 Unauthorized for the release tag request.
• lint (semgrep): real content blocker. Semgrep reported 23 blocking invisible-unicode-in-text findings in docs/pr-discussions/PR-4714-deps-bump-the-nuget-minor-patch-group-with-3-updates.md.

The semgrep hits are zero-width/invisible characters in issue/PR references and handles, including refs like #1907, #1912, #1723, #1313, #1337, #1828, #1927, #1933, and handles such as @meziantou / @Copilot where the archived text contains hidden characters.

Next branch-side fix: strip the invisible Unicode characters from that archive markdown, then rerun CI. Rerun-only is not enough while the semgrep findings remain.

I did not push a fix because this PR is Lior-owned (lior-archive-4714) and Lior is active locally; Vera stayed remote-only.

[AceHack]

All checks have now passed. The invisible unicode characters have been stripped.