add developper binding to platform

backend/migrations/2026_03_05_000000_add_developer_id_to_platforms_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Hyperf\Database\Schema\Schema;
+use Hyperf\Database\Schema\Blueprint;
+use Hyperf\Database\Migrations\Migration;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('platforms', function (Blueprint $table) {
+            $table->unsignedBigInteger('developer_id')->default(1)->comment('数据维护者，关联 users.id');
+            $table->foreign('developer_id')->references('id')->on('users')->onDelete('restrict');
+            $table->index('developer_id', 'idx_platforms_developer_id');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('platforms', function (Blueprint $table) {
+            $table->dropForeign(['developer_id']);
+            $table->dropIndex('idx_platforms_developer_id');
+            $table->dropColumn('developer_id');
+        });
+    }
+};