bump to 0.28.0-beta.1 (#1795)

<!-- CURSOR_SUMMARY -->
> [!NOTE]
> Bumps `package.json` version from `0.27.1` to `0.28.0-beta.1`.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
767e200f378205413e8a23fff7674149239a92d5. This will update automatically
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<!-- /CURSOR_SUMMARY -->

package.json

@@ -1,7 +1,7 @@
 {
   "name": "dyad",
   "productName": "dyad",
-  "version": "0.27.1",
+  "version": "0.28.0-beta.1",
   "description": "Free, local, open-source AI app builder",
   "main": ".vite/build/main.js",
   "repository": {