Feat[BE]: implement FIFO stock management for marketing delivery products, including migration scripts and updates to related services and DTOs

internal/database/migrations/20251226114218_add.down.sql

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+-- Remove foreign key constraint
+ALTER TABLE marketing_delivery_products
+DROP CONSTRAINT IF EXISTS fk_marketing_delivery_products_product_warehouse;
+
+-- Drop product_warehouse_id column
+ALTER TABLE marketing_delivery_products
+DROP COLUMN IF EXISTS product_warehouse_id;