Fix reset-password email sending undefined as email field; v2.0.11

Was passing data.hosts[idx].username (doesn't exist on stored hosts)
instead of data.hosts[idx].email for the welcome/reset email username param.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "siteforge",
   "private": true,
-  "version": "2.0.10",
+  "version": "2.0.11",
   "type": "module",
   "scripts": {
     "dev": "vite",