feat(Basicdata): Update 'is_dalam_kota' column and add new branches

- Update 'is_dalam_kota' to true for existing branches based on suffix code
- Set 'is_dalam_kota' to false for branches not in the list
- Add new branches (ID0012005 - KORPORASI, ID0010172 - AMBON TUAL MALUKU)
- Seeder is idempotent and can be rerun safely

run this command:
php artisan module:seed Basicdata --class="UpdateBranchesIsDalamKotaSeeder"

php artisan module:seed --class="Modules\\Basicdata\\Database\\Seeders\\UpdateBranchesIsDalamKotaSeeder"

app/Models/Branch.php

@@ -8,6 +8,7 @@
         protected $fillable = [
             'code',
             'name',
+            'is_dalam_kota',
             'address',
             'mnemonic',
             'customer_company',