fix(developers): correct SilverDESK provisioning payload fields

The CreateUserDto expects `fullName` and `password` but the payload
was sending `name` (wrong property name) and omitting password
entirely, causing 400 BadRequest validation errors.

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

BlazorApp/Services/ProvisioningService.cs

@@ -46,7 +46,13 @@ public class ProvisioningService
         try
         {
             var client = _httpClientFactory.CreateClient("SilverDesk");
-            var payload = new { username, email, name = fullName, role = "user" };
+            var payload = new
+            {
+                username,
+                email,
+                fullName,
+                password = Guid.NewGuid().ToString("N")[..16] + "!A1"
+            };
             var json = JsonSerializer.Serialize(payload);
             var content = new StringContent(json, Encoding.UTF8, "application/json");