feat: auto-repair sprite_id drift after every import

The emulator sends items_base.sprite_id to the client and Nitro resolves
the furniture by looking up that id in FurnitureData.json. Legacy rows
where sprite_id drifted from the id made the client render a completely
different item (e.g. a wired or custom asset instead of the purchased
furniture).

Add verifyAndFixSpriteIds() which repairs any row whose sprite_id no
longer matches its id while the local furnidata carries the item under
that id, and run it after every import path (single, batch, batch-regen,
clone) next to the offer_id rebuild.

src/app/api/admin/import/furni/batch/route.ts

@@ -7,6 +7,7 @@ import {
 	appendFurniEntriesBatch,
 	rebuildCatalogOfferIds,
 	reconcileFurniDataWithItemsBase,
+	verifyAndFixSpriteIds,
 } from "@/lib/services/furni-data";
 import {
 	ensureDirectories,
@@ -229,6 +230,7 @@ export const POST = withAdmin(
 				let furniDataMissing = 0;
 				let furniDataConflicts = 0;
 				let offerRebuildFixed = 0;
+				let spriteFixed = 0;
 				let interactionFixed = 0;
 				try {
 					offerIdsFixed = (await reconcileImportedOfferIds()).fixed;
@@ -242,6 +244,7 @@ export const POST = withAdmin(
 					furniDataMissing = furniReconcile.missing;
 					furniDataConflicts = furniReconcile.conflicts;
 					offerRebuildFixed = (await rebuildCatalogOfferIds()).fixed;
+					spriteFixed = (await verifyAndFixSpriteIds()).fixed;
 					interactionFixed = (await verifyAndFixInteractionModesCount()).fixed;
 				} catch (err) {
 					console.warn(
@@ -264,6 +267,7 @@ export const POST = withAdmin(
 					furniDataMissing,
 					furniDataConflicts,
 					offerRebuildFixed,
+					spriteFixed,
 					interactionFixed,
 					duration: Date.now() - startTime,
 				});