Only include necessary files for JSR

[neoncitylights]

This will publish jsr.json, LICENSE.md, README.md, and everything under src/ directory. To locally verify this:

jsr publish --dry-run

Fixes #972

[fabian-hiller]

Thank you for creating this PR. Why do you think it is better to publish only selected files? Is this approach recommended by the JSR team? Are package.json, LICENSE.md and other files not necessary?

[neoncitylights]

No problem :) And thanks for the question, I should have been more explicit in the PR.

There's no official recommendation from the JSR team on that; the reason for this is more just to reduce disk size when users install the library via JSR's compat layer with npm or the sorts (any that uses node_modules).

Regarding files:

• LICENSE.md isn't explicitly in the include array, but is specially whitelisted by JSR to be included no matter what.
• JSR packages only need either a jsr.json, deno.json, or package.json when published. It's still fine to have a mix of jsr.json/deno.json (one of these two) and package.json, but the JSR package would still be usable with just jsr.json.
• The root mod.ts file is currently ignored since you tell jsr.json to only export from src/index.ts. Like in a lot of the official @std/ packages, it does make sense to include mod.ts if when you're writing a package where you don't have a src/ directory, the code is in the root, but you still want to export everything under a single entrypoint; however, that doesn't apply here. (I didn't initially delete mod.ts file since I had accidentally not noticed that, sorry for the confusion)

Hope that clarifies things! Likewise I understand this is a bit of an opinionated PR (and not an official JSR team recc), so up to you, feel free to close it.

[fabian-hiller]

Sorry for my late reply. I was focused on my studies. I will review this PR in the next weeks.

[fabian-hiller]

Thank you for this PR. I added library/mod.ts back because we need it for deno.land/x/valibot.