Add agent-update-backlog.md and roadmap v0.7 outline for SAC-driven
agent version tracking and remote update initiation.
Co-authored-by: Cursor <cursoragent@cursor.com>
Replace git.kalinamall.ru links with github.com/PTah in public docs.
Add Rewrite-GitHostUrls.ps1 and Push-Mirror.ps1 for kalinamall mirror pushes.
Add .cursor/ to .gitignore.
Co-authored-by: Cursor <cursoragent@cursor.com>