update

catalog/projection.go

@@ -19,6 +19,10 @@
 //	inventory_tracked ← bool coercion of source[InventoryTrackedField]
 //	drop_ship        ← bool coercion of source[DropShipField]
 //	category         ← source[CategoryField]          (omitempty)
+//	category2        ← source[Category2Field]         (omitempty)
+//	category3        ← source[Category3Field]         (omitempty)
+//	category4        ← source[Category4Field]         (omitempty)
+//	category5        ← source[Category5Field]         (omitempty)
 //	brand            ← source[BrandField]             (omitempty)
 //	image            ← source[ImageField]             (omitempty)
 //	updated_at       ← Unix-ms from source[UpdatedAtField] OR stamped at
@@ -75,7 +79,10 @@ import (
 //	                  asks for these so the cart can pre-mark drop-ship
 //	                  items before checkout and inventory can opt-out of
 //	                  tracking for non-stock items.
-//	Category / Brand / Image — display projection only.
+//	Category* / Brand / Image — display projection only.
+//	Category2–Category5 extend category with deeper taxonomy levels for
+//	promotions engine multi-level matching and tracking personas.
+//	Each level is optional; an empty string means "not published".
 //	UpdatedAt        — version stamp for snapshot + revalidate.
 //
 // WIRE-COMPAT: adding a field is forward+backward-safe. Old snapshot
@@ -97,6 +104,10 @@ type Projection struct {
 	InventoryTracked bool            `json:"inventory_tracked"`
 	DropShip         bool            `json:"drop_ship"`
 	Category         string          `json:"category,omitempty"`
+	Category2        string          `json:"category2,omitempty"`
+	Category3        string          `json:"category3,omitempty"`
+	Category4        string          `json:"category4,omitempty"`
+	Category5        string          `json:"category5,omitempty"`
 	Brand            string          `json:"brand,omitempty"`
 	Image            string          `json:"image,omitempty"`
 	UpdatedAt        int64           `json:"updated_at"`