feat: integrate Playwright download dialog into startup flow

src/preload/api/browser-download.ts

@@ -4,6 +4,10 @@ import type { IpcResult } from '../../main/types/ipc.types'
 import type { DownloadProgress } from '../index.d'
 
 export const playwrightBrowserApi = {
+  check: async (): Promise<IpcResult<boolean>> => {
+    return ipcRenderer.invoke(IPC_CHANNELS.PLAYWRIGHT_BROWSER_CHECK)
+  },
+
   download: async (): Promise<IpcResult<void>> => {
     return ipcRenderer.invoke(IPC_CHANNELS.PLAYWRIGHT_BROWSER_DOWNLOAD)
   },

src/preload/index.d.ts

@@ -151,6 +151,7 @@ export interface DownloadProgress {
 }
 
 export interface PlaywrightBrowserAPI {
+  check: () => Promise<IpcResult<boolean>>
   download: () => Promise<IpcResult<void>>
   cancel: () => Promise<IpcResult<void>>
   onProgress: (callback: (data: DownloadProgress) => void) => () => void