Replace eslint-plugin-import with eslint-plugin-import-x

Modern fork with better performance and fewer dependencies.
Updates eslint config to use import-x rules.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Author: cmdcolin

eslint.config.mjs

@@ -1,6 +1,6 @@
 import eslint from '@eslint/js'
 import { defineConfig } from 'eslint/config'
-import importPlugin from 'eslint-plugin-import'
+import importPlugin from 'eslint-plugin-import-x'
 import tseslint from 'typescript-eslint'
 
 export default defineConfig(
@@ -80,9 +80,9 @@ export default defineConfig(
         },
       ],
 
-      'import/extensions': ['error', 'ignorePackages'],
-      'import/no-unresolved': 'off',
-      'import/order': [
+      'import-x/extensions': ['error', 'ignorePackages'],
+      'import-x/no-unresolved': 'off',
+      'import-x/order': [
         'error',
         {
           named: true,

package.json

@@ -50,7 +50,7 @@
   "devDependencies": {
     "@eslint/js": "^10.0.1",
     "eslint": "^9.39.4",
-    "eslint-plugin-import": "^2.32.0",
+    "eslint-plugin-import-x": "^4.16.2",
     "prettier": "^3.8.3",
     "rimraf": "^6.1.3",
     "typescript": "^6.0.3",