refactor: 统一 log.ts/debug.ts 的测试 mock 为共享定义

- 新增 tests/mocks/log.ts 和 tests/mocks/debug.ts，覆盖源文件全部实际导出
- 移除旧 mock 中不存在的导出（logToFile、logEvent、getLogFilePath）
- 13 个测试文件改为使用共享 mock，避免定义分散和不一致

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/utils/permissions/__tests__/PermissionMode.test.ts

@@ -1,11 +1,7 @@
 import { mock, describe, expect, test, beforeEach, afterEach } from "bun:test";
+import { logMock } from "../../../../tests/mocks/log";
 
-mock.module("src/utils/log.ts", () => ({
-  logError: () => {},
-  logToFile: () => {},
-  getLogDisplayTitle: () => "",
-  logEvent: () => {},
-}));
+mock.module("src/utils/log.ts", logMock);
 
 const {
   isExternalPermissionMode,

src/utils/permissions/__tests__/permissions.test.ts

@@ -1,24 +1,10 @@
 import { mock, describe, expect, test } from 'bun:test'
+import { logMock } from '../../../../tests/mocks/log'
 import { createFileStateCacheWithSizeLimit } from '../../../utils/fileStateCache.js'
 import { createSubagentContext } from '../../../utils/forkedAgent.js'
 import { getEmptyToolPermissionContext } from '../../../Tool.js'
 
-mock.module('src/utils/log.ts', () => ({
-  logError: () => {},
-  logToFile: () => {},
-  getLogDisplayTitle: () => '',
-  logEvent: () => {},
-  logMCPError: () => {},
-  logMCPDebug: () => {},
-  dateToFilename: (d: Date) => d.toISOString().replace(/[:.]/g, '-'),
-  getLogFilePath: () => '/tmp/mock-log',
-  attachErrorLogSink: () => {},
-  getInMemoryErrors: () => [],
-  loadErrorLogs: async () => [],
-  getErrorLogByIndex: async () => null,
-  captureAPIRequest: () => {},
-  _resetErrorLogForTesting: () => {},
-}))
+mock.module('src/utils/log.ts', logMock)
 
 const {
   getDenyRuleForTool,