feat: 归档旧迁移文件，创建初始化数据迁移和重置脚本

migrations/archive/000043_simplify_commission_allocation.up.sql

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+-- 简化佣金分配模型：删除 ShopSeriesAllocation 层，使用 ShopPackageAllocation 直接管理
+-- 重构原因：业务模型只需要套餐级别的分配，不需要系列级别的中间层
+
+-- ============================================
+-- 1. 为 ShopPackageAllocation 添加新字段
+-- ============================================
+
+-- 添加 series_id 字段（记录套餐所属系列，便于查询）
+ALTER TABLE tb_shop_package_allocation
+ADD COLUMN IF NOT EXISTS series_id BIGINT DEFAULT 0 NOT NULL;
+
+COMMENT ON COLUMN tb_shop_package_allocation.series_id IS '套餐系列ID（冗余字段，便于查询）';
+
+-- 添加 allocator_shop_id 字段（记录是谁分配的，0表示平台分配）
+ALTER TABLE tb_shop_package_allocation
+ADD COLUMN IF NOT EXISTS allocator_shop_id BIGINT DEFAULT 0 NOT NULL;
+
+COMMENT ON COLUMN tb_shop_package_allocation.allocator_shop_id IS '分配者店铺ID（0表示平台分配）';
+
+-- ============================================
+-- 2. 从现有数据迁移 series_id 和 allocator_shop_id
+-- ============================================
+
+-- 通过 package 表获取 series_id
+UPDATE tb_shop_package_allocation spa
+SET series_id = p.series_id
+FROM tb_package p
+WHERE spa.package_id = p.id AND spa.series_id = 0;
+
+-- 通过 shop_series_allocation 获取 allocator_shop_id
+UPDATE tb_shop_package_allocation spa
+SET allocator_shop_id = ssa.allocator_shop_id
+FROM tb_shop_series_allocation ssa
+WHERE spa.allocation_id = ssa.id AND spa.allocator_shop_id = 0;
+
+-- ============================================
+-- 3. 删除废弃的 allocation_id 字段
+-- ============================================
+
+ALTER TABLE tb_shop_package_allocation
+DROP COLUMN IF EXISTS allocation_id;
+
+-- ============================================
+-- 4. 添加索引优化查询性能
+-- ============================================
+
+CREATE INDEX IF NOT EXISTS idx_shop_package_allocation_series_id 
+ON tb_shop_package_allocation(series_id);
+
+CREATE INDEX IF NOT EXISTS idx_shop_package_allocation_allocator_shop_id 
+ON tb_shop_package_allocation(allocator_shop_id);
+
+-- ============================================
+-- 5. 删除废弃的表
+-- ============================================
+
+-- 删除系列分配配置表
+DROP TABLE IF EXISTS tb_shop_series_allocation_config;
+
+-- 删除系列分配表
+DROP TABLE IF EXISTS tb_shop_series_allocation;