discount for business and personall in discount page

migration/src/lib.rs

@@ -38,6 +38,7 @@ mod m20260620_000001_add_totp_to_users;
 mod m20260621_000001_add_sale_price_to_products;
 mod m20260621_000002_account_product_prices;
 mod m20260621_000003_discount_profiles;
+mod m20260621_000004_add_business_sale_price_to_products;
 pub struct Migrator;
 
 #[async_trait::async_trait]
@@ -80,6 +81,7 @@ impl MigratorTrait for Migrator {
             Box::new(m20260621_000001_add_sale_price_to_products::Migration),
             Box::new(m20260621_000002_account_product_prices::Migration),
             Box::new(m20260621_000003_discount_profiles::Migration),
+            Box::new(m20260621_000004_add_business_sale_price_to_products::Migration),
             // inject-above (do not remove this comment)
         ]
     }

migration/src/m20260621_000004_add_business_sale_price_to_products.rs

@@ -0,0 +1,20 @@
+use loco_rs::schema::*;
+use sea_orm_migration::prelude::*;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, m: &SchemaManager) -> Result<(), DbErr> {
+        // Optional per-product discounted price (minor units) shown to ALL
+        // business (company) accounts as a baseline, computed off the regular
+        // price like the personal sale. Per-company profiles/negotiated prices
+        // still layer on top (lowest price wins).
+        add_column(m, "products", "business_sale_price_cents", ColType::BigIntegerNull).await
+    }
+
+    async fn down(&self, m: &SchemaManager) -> Result<(), DbErr> {
+        remove_column(m, "products", "business_sale_price_cents").await
+    }
+}