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"

database/migrations/2025_12_08_071323_add_is_dalam_kota_to_branches_table.php

@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('branches', function (Blueprint $table) {
+            $table->boolean('is_dalam_kota')->default(true)->after('name');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('branches', function (Blueprint $table) {
+            $table->dropColumn('is_dalam_kota');
+        });
+    }
+};