gofastasf

refactor: replace manual slice management with bytes.Buffer in Writer

2

- Simplify buffer management with Write method. - Use Buffer.Next for moving to next chunk.

Chore: Reduce stat call by using WalkDir and use filepath.Ext for file extension

5

- filepath.Walk call os.Lstat for every file or directory that is being traversed. - filepath.WalkDir avoids stat call by directly providing DirEntry interface. - Use filepath.Ext for filepath extension instead...

Use path/filepath package methods for file system path for windows compatibility

2

path package methods are used for URL and unix specific paths and might cause error on windows. filepath methods are cross platform and more consistent with the code.