Objectives

Codify GitHub/Git "basic operations" and common collaboration workflows into:

A clear command quick reference (explanation + when to use)
Executable one-click scripts (to avoid repetitive manual steps)
Common outputs that are "numbered" whenever possible, so the user can reply with a number to choose an item directly, such as from a repository list

Security and Constraints (Must Be Followed)

No.	Rule	Reason
1	Do not output tokens: No command may echo or print `$GITHUB_TOKEN` to stdout	Prevent leaks
2	Require a second confirmation for dangerous operations: deleting branches, emptying directories, forced overwrites, force pushes, and direct pushes to main	These operations are hard to reverse
3	Use "branch + PR" collaboration by default; only "push directly to main" when the user explicitly requests it	Reduce the risk of damaging the main branch
4	Run `git status` before push/pull	Prevent accidental commits or overwrites