feat: add notice lead time for global promotions

database/migrations/2025_12_11_000000_add_notice_days_to_torrents_state_table.php

@@ -0,0 +1,26 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('torrents_state', function (Blueprint $table) {
+            if (!Schema::hasColumn('torrents_state', 'notice_days')) {
+                $table->integer('notice_days')->default(0)->after('remark');
+            }
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('torrents_state', function (Blueprint $table) {
+            if (Schema::hasColumn('torrents_state', 'notice_days')) {
+                $table->dropColumn('notice_days');
+            }
+        });
+    }
+};