Add receipt numbers to membership payments

database/migrations/2026_02_05_163500_add_receipt_number_to_membership_payments_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('membership_payments', function (Blueprint $table) {
+            $table->string('receipt_number')->nullable()->after('reference');
+        });
+
+        DB::table('membership_payments')
+            ->whereNull('receipt_number')
+            ->whereNotNull('reference')
+            ->where('reference', '<>', '')
+            ->where('notes', 'like', '2026-02-03 會員名冊與會員費與捐款統計資料.xlsx%')
+            ->update(['receipt_number' => DB::raw('reference')]);
+    }
+
+    public function down(): void
+    {
+        Schema::table('membership_payments', function (Blueprint $table) {
+            $table->dropColumn('receipt_number');
+        });
+    }
+};