Update user registration email format, remove unused SMS helper function, and adjust database migration for user meta column

database/migrations/2025_09_22_162906_add_extra_columns_to_users_table.php

@@ -13,7 +13,7 @@ return new class extends Migration
     {
         Schema::table('users', function (Blueprint $table) {
             $table->softDeletes()->after('updated_at');
-            $table->json('meta')->nullable()->after('remember_token');
+            $table->json('meta')->nullable()->after('phone_number');
         });
     }