feat: 实现笔临 P0/P1 Electron 桌面应用 v0.1.0

交付写作核心（TipTap、自动保存、分卷分章）、Onboarding、7 主题与双语 i18n、快捷键设置；主进程使用 node:sqlite；补全 Vitest 与 Playwright E2E；统一 design/ 目录并移除 desigin 拼写错误路径。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main/ipc/register.ts

@@ -0,0 +1,30 @@
+import { join } from 'path'
+import { app } from 'electron'
+import { GlobalSettingsService } from '../services/global-settings'
+import { BookRegistryService } from '../services/book-registry'
+import { ShortcutManager } from '../shortcuts/manager'
+import { registerSettingsHandlers } from './handlers/settings.handler'
+import { registerBookHandlers } from './handlers/book.handler'
+import { registerChapterHandlers } from './handlers/chapter.handler'
+import { registerShortcutHandlers } from './handlers/shortcut.handler'
+
+let shortcutManager: ShortcutManager | null = null
+
+export function registerIpc(): { settings: GlobalSettingsService; books: BookRegistryService; shortcuts: ShortcutManager } {
+  const userData = app.getPath('userData')
+
+  const settings = new GlobalSettingsService(userData)
+  const books = new BookRegistryService(userData)
+  shortcutManager = new ShortcutManager(settings)
+
+  registerSettingsHandlers(settings)
+  registerBookHandlers(books)
+  registerChapterHandlers(books)
+  registerShortcutHandlers(shortcutManager)
+
+  return { settings, books, shortcuts: shortcutManager }
+}
+
+export function getShortcutManager(): ShortcutManager | null {
+  return shortcutManager
+}