fix: furniture interaction detection and automatic catalog offer_id rebuild

Interaction detection:
- Trust SWF-derived sit/lay/stand flags only when the logic XML actually
  contains action data (new hasActions metadata); otherwise fall back to
  keyword detection so custom furni without <action> nodes are still
  classified correctly
- Add French/Dutch/German/Spanish/Italian keywords (chaise, banquette,
  stoel, silla, sedia, stuhl, tafel, mesa, ...) to sit/lay/stand detection
  with token-boundary matching to avoid false positives like bedside_table
- Unify interaction_modes_count priority: mechanic fixed modes, then raw
  animation state count, then sit/lay fallback, then keyword default
- Detect mechanic type even when real flags are not used

Catalog integrity:
- Skip duplicate catalog_items inserts in clone and upload imports
- Re-check live catalog rows before applying generated repair SQL
- Add rebuildCatalogOfferIds() which rebuilds every catalog_items.offer_id
  from the local FurnitureData.json (matched by entry id, then classname)
  and run it after every import path (single, batch, batch-regen, clone)

src/lib/services/upload-import.ts

@@ -337,6 +337,8 @@ export async function uploadSingleFurni(params: {
 		cansiton,
 		canlayon,
 		canstandon,
+		// Flags come from explicit user input → authoritative over keywords.
+		hasActionData: true,
 		logicType: (nitroMeta?.logicType as string) || undefined,
 		animationStates: nitroAnimationStatesCount(nitroMeta),
 	});
@@ -387,13 +389,25 @@ export async function uploadSingleFurni(params: {
 
 	let catalogItemId: number | null = null;
 	try {
-		const pageId = await getOrCreateCategoryPage(classname, itemType);
-		catalogItemId = await allocateCatalogItemId(async (nextCatalogId) => {
-			await db.execute(sql`
+		// Skip when the item already has a catalog row — re-uploads must never
+		// create a second row for the same item_ids.
+		const [existingCatalog] = (await db.execute(sql`
+      SELECT id FROM catalog_items WHERE item_ids = ${String(newId)} LIMIT 1
+    `)) as unknown as [Array<{ id: number }>, unknown];
+		if (existingCatalog.length > 0) {
+			catalogItemId = existingCatalog[0].id;
+			warnings.push(
+				`catalog entry already exists (#${catalogItemId}) — skipped duplicate`,
+			);
+		} else {
+			const pageId = await getOrCreateCategoryPage(classname, itemType);
+			catalogItemId = await allocateCatalogItemId(async (nextCatalogId) => {
+				await db.execute(sql`
         INSERT INTO catalog_items (id, page_id, item_ids, catalog_name, cost_credits, cost_points, points_type, amount, order_number, offer_id, extradata)
         VALUES (${nextCatalogId}, ${String(pageId)}, ${String(newId)}, ${classname}, ${price.credits}, ${price.points}, ${price.pointsType}, 1, 1, ${newId}, '')`);
-			return nextCatalogId;
-		});
+				return nextCatalogId;
+			});
+		}
 	} catch (err) {
 		warnings.push(`catalog entry failed: ${(err as Error).message}`);
 	}