GGaorui Zhangfix(git): stop defaulting to Co-Authored-By footers

description: Commit changes following Conventional Commits format (local only, no push).

Commit

Stage and commit changes using Conventional Commits format.

Instructions

Check Git Status
- Run git status to review all changes
- Run git diff to inspect modifications
Analyze Changes
- Review changed files and their content
- Determine commit type and scope
- Draft a concise commit message

Commit Type Reference

feat     - New feature
fix      - Bug fix
docs     - Documentation only
style    - Code style (formatting, semicolons, etc.)
refactor - Code refactoring (no feature/fix)
perf     - Performance improvement
test     - Adding or updating tests
chore    - Build, CI, tooling, dependencies

Commit Message Format
```
<type>(<scope>): <subject>

<body>
```
- Subject: imperative mood, no period, max 72 chars
- Body: explain what and why (optional for small changes)
- Scope: affected module (data, model, config, trainer, utils, workflow)
Stage and Commit
- Stage relevant files with git add
- Do NOT stage files containing secrets (.env, credentials, tokens)
- Create commit with formatted message
- Do not include Co-Authored-By footers unless the user explicitly asks for them
- Verify with git log --oneline -1

Notes

This command only commits locally. Use /update-github to also push.
Always confirm the commit message with the user before committing.
If unsure about type or scope, ask the user.