fix: 修正 Jest 配置中的文件路径，移除 next-auth mock

config/test/jest.config.js

@@ -18,7 +18,7 @@ module.exports = {
     },
   },
   coverageReporters: ['text', 'lcov', 'html', 'json'],
-  coverageDirectory: 'coverage',
+  coverageDirectory: '<rootDir>/coverage',
   moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
   moduleNameMapper: {
     '^@/(.*)$': '<rootDir>/src/$1',
@@ -33,4 +33,4 @@ module.exports = {
   testTimeout: 10000,
   verbose: true,
   maxWorkers: '50%',
-};
+};