fix(core-flows, dashboard, types): improve allocation flows on Admin (#12572)

**What**
- handle single inventory items with `required_quantity > 1` correctly in the allocate UI flow
- display correct availability amount in the create fulullment form for inventory kit items
- fix check in the create fulfillment flow that would allow negative reservation because `required_quantity` wasn't included in the check
- show the most recent reservations first in the reservations table
- display an error in the allocation form if a reservation is not created for some inventory items 
- display inventory kit in the order summary if the product has multiple same inventory items

---

CLOSES SUP-1655

packages/core/core-flows/src/order/workflows/create-fulfillment.ts

@@ -306,13 +306,6 @@ function prepareInventoryUpdate({
     const inputQuantity = inputItemsMap[item.id]?.quantity ?? item.quantity
 
     reservations.forEach((reservation) => {
-      if (MathBN.gt(inputQuantity, reservation.quantity)) {
-        throw new MedusaError(
-          MedusaError.Types.INVALID_DATA,
-          `Quantity to fulfill exceeds the reserved quantity for the item: ${item.id}`
-        )
-      }
-
       const iItem = orderItem?.variant?.inventory_items.find(
         (ii) => ii.inventory.id === reservation.inventory_item_id
       )
@@ -327,6 +320,13 @@ function prepareInventoryUpdate({
         adjustemntQuantity
       )
 
+      if (MathBN.lt(remainingReservationQuantity, 0)) {
+        throw new MedusaError(
+          MedusaError.Types.INVALID_DATA,
+          `Quantity to fulfill exceeds the reserved quantity for the item: ${item.id}`
+        )
+      }
+
       inventoryAdjustment.push({
         inventory_item_id: reservation.inventory_item_id,
         location_id: input.location_id ?? reservation.location_id,