fix(lint): remove unused static pwaService imports (tests use dynamic import)

Author: GizzZmo

test/pwaService.test.ts

@@ -1,12 +1,4 @@
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
-import {
-  register,
-  promptInstall,
-  applyUpdate,
-  onPWAStateChange,
-  getPWAState,
-} from '../services/pwaService';
-
 // ---------------------------------------------------------------------------
 // Helpers
 // ---------------------------------------------------------------------------