refactor(database): update primary key in processed_statements table

- Menghapus kolom `id` dari tabel `processed_statements` dan sekaligus menghapus primary key auto-increment terkait.
- Menetapkan kombinasi kolom `account_number`, `period`, dan `sequence_no` sebagai keys baru dengan composite primary key untuk memastikan setiap record bersifat unik.
- Menambahkan kemampuan rollback pada migration untuk mengembalikan struktur ke kondisi awal:
  - Menghapus composite primary key pada kolom `account_number`, `period`, dan `sequence_no`.
  - Menambahkan kembali kolom `id` sebagai auto-increment primary key di posisi paling awal tabel.

database/migrations/2025_05_24_090125_remove_id_from_processed_statements_table.php

@@ -0,0 +1,37 @@
+<?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('processed_statements', function (Blueprint $table) {
+            // Drop the id column and its auto-increment primary key
+            $table->dropColumn('id');
+            
+            // Set the composite primary key using account_number, period, and sequence_no
+            // This combination should be unique for each record
+            $table->primary(['account_number', 'period', 'sequence_no']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('processed_statements', function (Blueprint $table) {
+            // Drop the composite primary key
+            $table->dropPrimary(['account_number', 'period', 'sequence_no']);
+            
+            // Add back the id column with auto-increment
+            $table->id()->first();
+        });
+    }
+};