docs: restore viteplus.dev/vp-setup.exe redirect and use as user-facing URL

Author: fengmk2

docs/guide/index.md

@@ -18,7 +18,7 @@ curl -fsSL https://vite.plus | bash
 irm https://vite.plus/ps1 | iex
 ```
 
-Alternatively, download and run [`vp-setup.exe`](https://vp-setup.void.app).
+Alternatively, download and run [`vp-setup.exe`](https://viteplus.dev/vp-setup.exe).
 
 ::: tip SmartScreen warning
 The `vp-setup.exe` is not yet code-signed. Your browser may show a warning when downloading. Click **"..."** → **"Keep"** → **"Keep anyway"** to proceed. If Windows Defender SmartScreen blocks the file when you run it, click **"More info"** → **"Run anyway"**.

netlify.toml

@@ -2,3 +2,9 @@
 base = "docs/"
 command = "pnpm build"
 publish = ".vitepress/dist"
+
+# Windows installer redirect
+[[redirects]]
+from = "/vp-setup.exe"
+to = "https://vp-setup.void.app"
+status = 302

rfcs/windows-installer.md

@@ -413,7 +413,7 @@ The release workflow already creates GitHub Releases. Add build + upload steps f
 
 ### Phase 2: Direct Download URL (done)
 
-Installation docs link directly to `https://vp-setup.void.app` which serves the platform-appropriate installer binary.
+`https://viteplus.dev/vp-setup.exe` redirects (302) to `https://vp-setup.void.app` via Netlify redirect in `netlify.toml`. Installation docs link to the user-facing `viteplus.dev` URL.
 
 ### Phase 3: Package Managers