[feat] TypeScript related extensions should be supported in favor of Node.js type stripping

[JounQin]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything (or linked relevant results below)

Problem

https://nodejs.org/en/learn/typescript/run-natively

Custom remark config path with, for example, remarkrc.ts

Current solutions

N/A

Proposed solutions

Just add .ts, .mts .ts into:

unified-engine/lib/configuration.js

Lines 97 to 104 in 6f35eae

	const loaders = {
	'.json': loadJson,
	'.cjs': loadScriptOrModule,
	'.mjs': loadScriptOrModule,
	'.js': loadScriptOrModule,
	'.yaml': loadYaml,
	'.yml': loadYaml
	}

I tried with Node 24 it runs very well, but with Node 22, it throws unknown extension .ts at

unified-engine/lib/configuration.js

Line 530 in 6f35eae

const result = await import(fileUrl)

[github-actions]

Hi! This was closed. Team: If this was fixed, please add phase/solved. Otherwise, please add one of the no/* labels.