fix: align intent TypeScript and ESLint setup with TanStack conventions

[WolfieLeader]

🎯 Changes

Align the @tanstack/intent TypeScript and ESLint setup with the pattern used in other TanStack repos.

This PR:

• includes packages/intent/tests in packages/intent/tsconfig.json
• sets rootDir explicitly for the package TS project
• brings eslint.config.js under root TS project coverage
• cleans up the resulting lint/type issues in packages/intent/src and packages/intent/tests
• knip.json added entry field since this is a CLI tool

Motivation:

• remove editor and typed-ESLint project coverage errors
• ensure diagnostics come from real TS project analysis instead of files falling outside tsconfig
• keep the package aligned with broader TanStack conventions

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested this code locally with pnpm run test:pr.

🚀 Release Impact

• This change affects published code, and I have generated a changeset.
• This change is docs/CI/dev-only (no release).

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@tanstack/intent@50

commit: 219e628

[WolfieLeader]

Is everything good?

[WolfieLeader]

Let's go!

[WolfieLeader]

I wanted to add something but I am waiting for approval. discoverSkills() is used twice we can create a single function that will be used.

[KyleAMathews]

discoverSkills() is used twice we can create a single function that will be used.

Ah nice — yeah feel free to DRY that up in a new PR

[WolfieLeader]

@KyleAMathews Thank you so much!

I will try to make it much more readable, is there a way to contact you to ask a bit of questions?