feat(edit): 定价试算开发、SKU 样式功能修改

packages/database/migrations/053_package_spec_modes.sql

@@ -0,0 +1,30 @@
+SET search_path TO atlas, public;
+
+-- 包装重量与尺寸可分别由商品通用值或逐 SKU 值填写；空草稿也需要保存模式。
+ALTER TABLE products
+    ADD COLUMN package_weight_mode TEXT NOT NULL DEFAULT 'common'
+        CHECK (package_weight_mode IN ('common', 'variant')),
+    ADD COLUMN package_dimensions_mode TEXT NOT NULL DEFAULT 'common'
+        CHECK (package_dimensions_mode IN ('common', 'variant'));
+
+-- 旧编辑器在每个 SKU 都有对应覆盖值时即展示逐 SKU 表单，迁移时保留该显示模式。
+UPDATE products p
+SET package_weight_mode = 'variant'
+WHERE EXISTS (
+    SELECT 1 FROM product_variants v WHERE v.product_id = p.id AND v.deleted_at IS NULL
+)
+AND NOT EXISTS (
+    SELECT 1 FROM product_variants v
+    WHERE v.product_id = p.id AND v.deleted_at IS NULL AND v.shipping_weight_g IS NULL
+);
+
+UPDATE products p
+SET package_dimensions_mode = 'variant'
+WHERE EXISTS (
+    SELECT 1 FROM product_variants v WHERE v.product_id = p.id AND v.deleted_at IS NULL
+)
+AND NOT EXISTS (
+    SELECT 1 FROM product_variants v
+    WHERE v.product_id = p.id AND v.deleted_at IS NULL
+      AND (v.package_length_mm IS NULL OR v.package_width_mm IS NULL OR v.package_height_mm IS NULL)
+);