fix: types

[userquin]

This PR includes:

• add package manager to root package.json
• add unbuild dev dependency in library package.json
• build valibot using unbuild instead Vite: Vite still there, if you want still use it (you can remove the dependency)
• exports all submodules
• added dts file per submodule for node10: included in dist package entry
• tsc will be only used to copy source files to dist folder once built
• udpated playground script to generate also stubs

If you want to only export the index module:

• remove all library d.ts files from library folder, remove also d.cts ones, don't remove index.d.cts
• remove all exports from library package.json (keep only ".")
• remove "resolveJsonModule": true from library tsconfig file: only used to read the import entry from the package exports
• remove all code from build.config.ts file, keep only the import and the default export using defineBuildConfig (remove also the type from the import)
• replace entries with entries: ['src/index'], in build.config.ts file
• remove *.d.ts from library package.json dist option, don't remove *.d.cts

You can build and pack valibot: pnpm build && pnpm pack and upload generated tgz file to https://arethetypeswrong.github.io/

closes #7

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[userquin]

The root types and main package entries updated for old TypeScript versions support: https://www.typescriptlang.org/docs/handbook/esm-node.html#packagejson-exports-imports-and-self-referencing

[fabian-hiller]

Thanks for your research and technical implementation! What is the advantage of the submodules and the .d.ts and .d.cts files in the library directory? I have not fully understood this yet.

[userquin]

About submodules, here none. About d.cts and d.ts, you need to add both to allow use valibot in CJS and ESM, check typescriptlang link, TypeScript requires both.

[fabian-hiller]

Do these files have to be in the library directory or can they also be in dist?

[userquin]

Must be on root, ts resolution will lookup them for node10, dist folder will be regenerated on each build.

Check the resolutions entries in https://arethetypeswrong.github.io/ with the tgz file, expand the details below the table

[fabian-hiller]

Would we save all the hassle if we generated a single .mjs, .cjs, .d.ts and .d.cts file from the many source files in the build step? I don't want to complicate the repository unnecessarily. Currently I am a bit averse to the many files in the library directory.

[userquin]

Yes, we only need the index.d.cts and the build.config.ts module, we can remove all the submodules, check first comment about removing submodules.

I'll cleanup the PR tmr.