medal add bonus addition duration

database/migrations/2025_07_13_232240_add_bonus_addition_duration_to_medals.php

@@ -0,0 +1,34 @@
+<?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('medals', function (Blueprint $table) {
+            $table->integer('bonus_addition_duration')->default(0)->after('bonus_addition_factor')->comment('魔力加成有效天数，0 永久有效');
+        });
+        Schema::table('user_medals', function (Blueprint $table) {
+            $table->dateTime('bonus_addition_expire_at')->nullable()->after('expire_at')->comment('魔力加成过期时间，null 永不过期');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('medals', function (Blueprint $table) {
+            $table->dropColumn('bonus_addition_duration');
+        });
+        Schema::table('user_medals', function (Blueprint $table) {
+            $table->dropColumn('bonus_addition_expire_at');
+        });
+    }
+};