整理：合并零散迁移文件，36个简化为24个纯建表迁移

- users 表：吸收 s_color类型变更/sign/question/answer/vip_level_id/has_received_new_gift
- rooms 表：吸收 visit_num、announcement
- sysparam 表：吸收全部 seed（99级经验/权限等级/钓鱼/魅力/排行榜，直接写最终值）
- 新增 create_shop_tables（shop_items+user_purchases+username_blacklist+默认商品）
- 新增 create_user_currency_logs_table（积分流水表含完整索引）
- 删除 14 个已吸收的 add_column / seed 零散迁移

database/migrations/2026_02_27_005300_create_gifts_table.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * 文件功能：创建 gifts 礼物表并填充默认鲜花数据
+ *
+ * 礼物系统支持后台管理多种花/礼物类型，每种有不同的金币消耗和魅力增量。
+ * 图片存放在 public/images/gifts/ 目录下。
+ *
+ * @author ChatRoom Laravel
+ *
+ * @version 1.0.0
+ */
+
+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
+{
+    /**
+     * 创建 gifts 表并填充默认礼物数据
+     */
+    public function up(): void
+    {
+        Schema::create('gifts', function (Blueprint $table) {
+            $table->id();
+            $table->string('name', 50)->comment('礼物名称');
+            $table->string('emoji', 10)->comment('显示图标/emoji');
+            $table->string('image', 100)->nullable()->comment('礼物图片路径（相对 /images/gifts/）');
+            $table->unsignedInteger('cost')->default(0)->comment('消耗金币数');
+            $table->unsignedInteger('charm')->default(1)->comment('增加魅力值');
+            $table->unsignedTinyInteger('sort_order')->default(0)->comment('排序（越小越靠前）');
+            $table->boolean('is_active')->default(true)->comment('是否启用');
+            $table->timestamps();
+        });
+
+        // 填充默认鲜花数据（图片文件名与 sort_order 对应）
+        DB::table('gifts')->insert([
+            ['name' => '小雏菊',   'emoji' => '🌼', 'image' => 'daisy.png',     'cost' => 5,   'charm' => 1,   'sort_order' => 1, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '玫瑰花',   'emoji' => '🌹', 'image' => 'rose.png',      'cost' => 10,  'charm' => 2,   'sort_order' => 2, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '向日葵',   'emoji' => '🌻', 'image' => 'sunflower.png', 'cost' => 20,  'charm' => 5,   'sort_order' => 3, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '樱花束',   'emoji' => '🌸', 'image' => 'sakura.png',    'cost' => 50,  'charm' => 12,  'sort_order' => 4, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '满天星',   'emoji' => '💐', 'image' => 'bouquet.png',   'cost' => 100, 'charm' => 30,  'sort_order' => 5, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '蓝色妖姬', 'emoji' => '🪻', 'image' => 'bluerose.png',  'cost' => 200, 'charm' => 66,  'sort_order' => 6, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+            ['name' => '钻石花冠', 'emoji' => '👑', 'image' => 'crown.png',     'cost' => 520, 'charm' => 188, 'sort_order' => 7, 'is_active' => true, 'created_at' => now(), 'updated_at' => now()],
+        ]);
+    }
+
+    /**
+     * 回滚：删除 gifts 表
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('gifts');
+    }
+};