Rebuild admin pages around DataTable/AdminModal; restructure categories/groups and v2 groups API

Remove the generic $lib/svelte-admin CRUD layer and AdminTable.svelte; each
admin route now owns its own form/modal logic. Add DataTable.svelte,
superform-errors.ts, and profile-specific modal/field components.

Flatten proclamation categories/groups and drop subscription levels; add the
v2 groups API; update v1/v2 endpoints, serializers, auth, and regenerated
Prisma client with the new migrations.

Document the overhaul plan in docs/ADMIN_OVERHAUL.md.

package.json

@@ -1,5 +1,5 @@
 {
-	"name": "portal.Rhemawavetech.com",
+	"name": "portal.radiantwavetech.com",
 	"private": true,
 	"version": "0.0.1",
 	"type": "module",
@@ -67,4 +67,4 @@
 		"sveltekit-superforms": "^2.30.2",
 		"zod": "^4.4.3"
 	}
-}
+}