chore(lint): rename oxlint plugin .js → .mts

Cascaded from socket-wheelhouse. Renames the plugin index + all rule
files from .js to .mts to match Socket's .mts-everywhere convention.

* .config/oxlint-plugin/index.mts (was .js)
* .config/oxlint-plugin/rules/*.mts (was .js)
* .config/oxlint-plugin/package.json main/exports → ./index.mts
* .config/oxlintrc.json jsPlugins → ./oxlint-plugin/index.mts
* Internal imports inside index + rules updated to .mts paths

Author: jdalton

.config/oxlint-plugin/index.js .config/oxlint-plugin/index.mts.config/oxlint-plugin/index.js renamed to .config/oxlint-plugin/index.mts

@@ -13,19 +13,19 @@
  * `socket/` namespace.
  */
 
-import exportTopLevelFunctions from './rules/export-top-level-functions.js'
-import noConsolePreferLogger from './rules/no-console-prefer-logger.js'
-import noDynamicImportOutsideBundle from './rules/no-dynamic-import-outside-bundle.js'
-import noFetchPreferHttpRequest from './rules/no-fetch-prefer-http-request.js'
-import noInlineLogger from './rules/no-inline-logger.js'
-import noPromiseRaceInLoop from './rules/no-promise-race-in-loop.js'
-import noStatusEmoji from './rules/no-status-emoji.js'
-import noTodoComments from './rules/no-todo-comments.js'
-import preferExistsSync from './rules/prefer-exists-sync.js'
-import preferSafeDelete from './rules/prefer-safe-delete.js'
-import preferUndefinedOverNull from './rules/prefer-undefined-over-null.js'
-import sortSetArgs from './rules/sort-set-args.js'
-import sortSourceMethods from './rules/sort-source-methods.js'
+import exportTopLevelFunctions from './rules/export-top-level-functions.mts'
+import noConsolePreferLogger from './rules/no-console-prefer-logger.mts'
+import noDynamicImportOutsideBundle from './rules/no-dynamic-import-outside-bundle.mts'
+import noFetchPreferHttpRequest from './rules/no-fetch-prefer-http-request.mts'
+import noInlineLogger from './rules/no-inline-logger.mts'
+import noPromiseRaceInLoop from './rules/no-promise-race-in-loop.mts'
+import noStatusEmoji from './rules/no-status-emoji.mts'
+import noTodoComments from './rules/no-todo-comments.mts'
+import preferExistsSync from './rules/prefer-exists-sync.mts'
+import preferSafeDelete from './rules/prefer-safe-delete.mts'
+import preferUndefinedOverNull from './rules/prefer-undefined-over-null.mts'
+import sortSetArgs from './rules/sort-set-args.mts'
+import sortSourceMethods from './rules/sort-source-methods.mts'
 
 /** @type {import('eslint').ESLint.Plugin} */
 const plugin = {