fix: remove unused imports and fix logger test isolation

- Remove unused imports (run, trackDuration, PerformanceTracker,
  ConfigManager, disconnectDb) flagged by ESLint
- Remove unused isSlow variable in performance-monitor catch block
- Add eslint-disable for require() in Playwright JS script
- Fix logger-performance test flakiness by using vi.resetModules()
  with dynamic imports to prevent cached logger references across
  test files

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main/services/user/bip-users-dao.ts

@@ -8,13 +8,8 @@
  * - Create, update, delete users
  */
 
-import {
-  create,
-  disconnect as disconnectDb,
-  type IDatabaseService
-} from '../database/index'
+import { create, type IDatabaseService } from '../database/index'
 import { createDialect, type SqlDialect } from '../database/dialects'
-import { ConfigManager } from '../config/config-manager'
 import type { UserInfo } from '../../types/user.types'
 import { createLogger, logError } from '../logger'