refactor: using sourcemap as sourcemap builder

[underfin]

The pr using sourcemap as sourcemap builder. It will avoid some issue at rolldown.

1. avoid different sourcemap crate and struct to cast.
2. avoid return DecodedMap, because we need to encode vlq mapping to remapping.

[underfin]

@hyf0 Could you merge this and publish a version?

[underfin]

@hyf0 Could you merge this and publish a version?

[underfin]

I need it to creat mapping to same as magicString.generateMap({ hires: true, includeContent: true, source: id });

[underfin]

Please wait publish version, i need to using oxc sourcemap