chore(deps): bump typescript to 6.0.2 and eslint to 10.2.0 (#504)

- Bump typescript ^5.9.3 -> ^6.0.2
- Bump eslint ^9.39.4 -> ^10.2.0
- Replace @typescript-eslint/eslint-plugin and @typescript-eslint/parser with unified typescript-eslint package
- Add @eslint/js and globals as explicit devDependencies (no longer transitive in ESLint 10)
- Remove eslint-plugin-github (peer-deps blocked ESLint 10; was registered but contributed zero rules)
- Drop deprecated baseUrl from tsconfig.json (removed in TS 7)

Co-authored-by: Misha Kav <misha.kav@gmail.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 3 people

dist/index.js

@@ -1,7 +1,6 @@
 import eslint from '@eslint/js'
 import tseslint from 'typescript-eslint'
 import jestPlugin from 'eslint-plugin-jest'
-import githubPlugin from 'eslint-plugin-github'
 import prettierPlugin from 'eslint-plugin-prettier'
 import globals from 'globals'
 
@@ -34,7 +33,6 @@ export default [
     plugins: {
       '@typescript-eslint': tseslint.plugin,
       jest: jestPlugin,
-      github: githubPlugin,
       prettier: prettierPlugin
     },
     rules: {