refactor(electron): create electron api package (#5334)

tests/affine-desktop/e2e/workspace.spec.ts

@@ -1,10 +1,17 @@
 import path from 'node:path';
 
+import type { apis } from '@affine/electron-api';
 import { test } from '@affine-test/kit/electron';
 import { clickSideBarCurrentWorkspaceBanner } from '@affine-test/kit/utils/sidebar';
 import { expect } from '@playwright/test';
 import fs from 'fs-extra';
 
+declare global {
+  interface Window {
+    apis: typeof apis;
+  }
+}
+
 test('check workspace has a DB file', async ({ appInfo, workspace }) => {
   const w = await workspace.current();
   const dbPath = path.join(