chore(ci): add one-time workflow to rewrite commit message 408e6b4 on main

[Copilot]

This PR adds a one-time, manually triggered GitHub Actions workflow to rewrite the commit message of commit 408e6b451e6f61d1786b9e83c970a906858e9050 on the main branch.

What this workflow does

The workflow will change the commit message from:

Replace Russian comments and print messages in main.py with English

To exactly:

Replace comments and print messages in main.py with English

How it works

The workflow (reword-commit-408e6b4.yml) includes the following safety features:

1. Manual trigger only - Uses workflow_dispatch to prevent accidental execution
2. Backup creation - Creates a backup branch backup/pre-reword-{run_id} before making changes
3. Surgical rewrite - Uses git filter-branch with conditional message filtering to target only the specific commit SHA
4. Safe force-push - Uses --force-with-lease to prevent overwriting unexpected changes
5. Verification - Shows the last 20 commits after the operation for confirmation

Usage Instructions

After this PR is merged:

1. Go to Actions → "Rewrite commit message 408e6b4" → "Run workflow"
2. The workflow will automatically create a backup and rewrite the commit message
3. If something goes wrong, you can restore using: git push --force-with-lease origin backup/pre-reword-[run_id]:main

The workflow operates idempotently - if the commit message was already rewritten, running it again will result in a no-op push.

Files Changed

• ✅ Added .github/workflows/reword-commit-408e6b4.yml (new workflow file)
• ✅ No existing code or repository files were modified

This change is minimal and surgical, adding only the necessary workflow file without touching any existing functionality.

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