fix: resolve all ESLint errors across API and web packages

Fix 19+ lint errors: unused imports (Phone, DuplicateCandidate, listingDetailsSchema),
import ordering violations, consistent-type-imports, and constant binary expression
in test file.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/auth/infrastructure/strategies/zalo-oauth.strategy.ts

@@ -1,5 +1,6 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { type OAuthService, type OAuthUserProfile } from '../services/oauth.service';
+import { type TokenPair } from '../services/token.service';
 
 /**
  * Zalo OAuth2 integration.
@@ -70,7 +71,7 @@ export class ZaloOAuthStrategy {
    * Handle the OAuth callback: exchange code for tokens, fetch profile,
    * and authenticate via OAuthService.
    */
-  async handleCallback(code: string, codeVerifier?: string): Promise<{ tokens: import('../services/token.service').TokenPair }> {
+  async handleCallback(code: string, codeVerifier?: string): Promise<{ tokens: TokenPair }> {
     // 1. Exchange authorization code for access token
     const tokenData = await this.exchangeCode(code, codeVerifier);