Remove redundant files and add .gitignore entries

[fltb]

This PR deletes untracked files that should not be committed to the repository, including:

• node_modules/: dependency directory, should be installed via package manager
• .DS_Store: macOS system file, unnecessary for version control

Also added a .gitignore file to prevent these from being committed in the future.

[4k1k0]

did you just clone the repo and rm -rf node_modules ? This will not work. @Jackywine needs to rewrite all the git history 😆

[fltb]

That’s not something I have the authority to do.
Other people can also use the --depth parameter of git clone.

[just-ign]

@4k1k0 , I don't think the git history needs to be written. SImply deleting the file and then adding it to the .gitignore (Like in this PR) is more than enough. That's how I usually go about it..

[plsgivemeachane]

Pushing node_modules in repo is wild🙏🏻

[Jackywine]

不好意思，我并不会写代码，只是一路让 AI 继续，给大家造成了困扰
Sorry, I can't write code, I just let the AI continue all the way, causing trouble for everyone

[array-in-a-matrix]

https://stackoverflow.com/questions/10067848/remove-folder-and-its-contents-from-git-githubs-history/61544937#61544937

TL;DR:
Install git-filter-repo then run git-filter-repo --path node_modules --invert-paths.

This PR does not solve the issue as git clone ... will still include the node_modules and DS_Store in the git history.

[plsgivemeachane]

不好意思，我并不会写代码，只是一路让 AI 继续，给大家造成了困扰 Sorry, I can't write code, I just let the AI continue all the way, causing trouble for everyone

Its fine. The fact that you're open to letting others contribute and improve the code is already super helpful!