Add hooks documentation for Copilot CLI and coding agent (#59067)
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: RyanHecht <5344055+RyanHecht@users.noreply.github.com>
Co-authored-by: Ryan Hecht <ryanhecht@github.com>
Co-authored-by: Steve Ward <steveward@github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Siara <108543037+SiaraMist@users.noreply.github.com>
