Run local eslint rules directly as typescript

[mjbvz]

Remove the need to use tsx here

[Copilot]

Pull request overview

This PR attempts to modernize the ESLint plugin architecture by removing the dependency on tsx and directly running TypeScript files using Node.js's experimental TypeScript support. The changes migrate from CommonJS to ES modules, update type assertions to use the as syntax, and leverage modern Node.js features like import.meta.dirname.

Key Changes

• Migrated custom ESLint rules from CommonJS (export =) to ES modules (export default)
• Replaced .eslintplugin/index.js with .eslintplugin/index.ts to dynamically load rules using ESM imports
• Updated all type assertions from angle-bracket syntax (<Type>) to as Type syntax throughout ESLint plugin files

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
eslint.config.mjs	Changed to import TypeScript files directly from .eslintplugin/index.ts instead of compiled JavaScript
.eslintplugin/tsconfig.json	Updated to ES2024 target with allowImportingTsExtensions and erasableSyntaxOnly for Node.js TypeScript support
.eslintplugin/package.json	Added "type": "module" to enable ES module resolution
.eslintplugin/index.ts	New file replacing index.js, uses dynamic imports and import.meta.dirname to load rules
.eslintplugin/utils.ts	Updated type assertions from <Type> to as Type syntax
.eslintplugin/no-runtime-import.ts	Changed export syntax, updated type assertions, migrated from __dirname to import.meta.dirname, added .ts extension to imports
.eslintplugin/*.ts (all rule files)	Consistently changed from export = to export default and updated type assertions to as syntax
.eslintplugin/index.js	Deleted - replaced with TypeScript implementation

[Copilot]

Importing .ts files directly in an .mjs file will fail at runtime without additional configuration. Node.js (even version 22.14.0) cannot natively import TypeScript files without either:

1. The --experimental-strip-types flag, or
2. A TypeScript loader/transpiler (like tsx which was removed in this PR)

The ESLint CLI will fail to load this config file. You'll need to either:

• Keep the old approach with a .js file that uses tsx to load TypeScript files
• Compile the .eslintplugin files to JavaScript and import the compiled .js files
• Use a different mechanism to load TypeScript-based ESLint rules

Consider adding a build step that compiles .eslintplugin/*.ts to .eslintplugin/dist/*.js and importing from there instead.

Suggested change

	import * as localEslint from './.eslintplugin/index.ts';
	import * as localEslint from './.eslintplugin/dist/index.js';