- get_discount_setting_products: LEFT JOIN基准折扣方案_HeaX, COALESCE优先方案折扣, 新增in_plan字段 - get_products_with_discount.dspy: 同步加基准折扣COALESCE - index.ui: 折扣默认1.0, 新增'✓方案内'标记列 - save_discount: old_discount默认1.0
- get_discount_setting_products: LEFT JOIN基准折扣方案_HeaX, COALESCE优先方案折扣, 新增in_plan字段 - get_products_with_discount.dspy: 同步加基准折扣COALESCE - index.ui: 折扣默认1.0, 新增'✓方案内'标记列 - save_discount: old_discount默认1.0