[CLEAN] Synthetic Benchmark PR #10543 - ✅ test(desktop): improve test coverage for multiple modules

[tomerqodo]

Benchmark PR lobehub#10543

Type: Clean (correct implementation)

Original PR Title: ✅ test(desktop): improve test coverage for multiple modules
Original PR Description: #### 💻 Change Type

• ✅ test

🔗 Related Issue

Closes LOBE-1215, LOBE-1216, LOBE-1217, LOBE-1218, LOBE-1219

Related to LOBE-1211 (Desktop App 测试覆盖改进计划)

🔀 Description of Change

Add comprehensive unit tests for desktop app modules to improve overall test coverage toward 60%+.

Test Coverage Added:

Module	Tests Added	Files
Preload Scripts	49 tests	routeInterceptor, invoke, streamer, electronApi
Menu System	108 tests	macOS, windows, linux, BaseMenuPlatform
Core UI (Tray)	78 tests	Tray, TrayManager, MenuManager
Services	21 tests	fileSearchSrv
Utilities	25 tests	file-system, logger

Total: 281 new test cases covering critical desktop functionality.

Test Strategy:

• Mock Electron APIs (Tray, Menu, BrowserWindow, ipcRenderer, contextBridge)
• Mock Node.js modules (fs, path)
• Mock i18n translation functions
• Test normal flows, edge cases, and error handling
• Follow project testing conventions and patterns

🧪 How to Test

cd apps/desktop && bunx vitest run --silent='passed-only' 'src/preload' 'src/main/menus' 'src/main/core/ui' 'src/main/services' 'src/main/utils'

• Tested locally
• Added/updated tests
• No tests needed

📸 Screenshots / Videos

N/A - Test files only, no UI changes.

📝 Additional Information

This PR is part of the Desktop App Test Coverage Improvement Plan (LOBE-1211) to improve test coverage from 29% to 60%+.

🤖 Generated with Claude Code
Original PR URL: lobehub#10543