价格增加百分比上浮

database/migrations/2026_07_23_030609_create_product_table.php

@@ -42,6 +42,7 @@ return new class extends Migration
                 $table->integer('shelf_life')->default(0)->comment('保质期');
                 $table->integer('stock')->default(0)->comment('库存');
                 $table->integer('status')->default(1)->comment('状态（1上架 0下架）');
+                $table->decimal('cost_price', 10, 2)->default(0)->comment('成本价（元，成本百分比计价基数）');
                 $table->string('remark', 255)->default('')->comment('备注');
                 $table->timestamps();
                 $table->softDeletes();
@@ -57,7 +58,9 @@ return new class extends Migration
                 $table->increments('id')->comment('价格ID');
                 $table->integer('product_id')->comment('商品ID');
                 $table->integer('level_id')->comment('客户等级ID');
-                $table->decimal('price', 10, 2)->default(0)->comment('该等级下的商品单价');
+                $table->decimal('price', 10, 2)->default(0)->comment('该等级下的商品单价（固定价=实际单价；百分比=等价固定价）');
+                $table->unsignedTinyInteger('price_type')->default(0)->comment('计价类型（0固定价 1成本百分比）');
+                $table->decimal('percent', 5, 2)->default(0)->comment('成本上浮百分点（如 30 = 上浮30%，仅 price_type=1 生效）');
                 $table->timestamps();
                 $table->unique(['product_id', 'level_id'], 'product_price_product_level_unique');
                 $table->comment('商品等级价格表');