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/catalog-repair.ts

@@ -361,6 +361,16 @@ export async function generateCatalogSql(
 			skipped++;
 			continue;
 		}
+		// Re-check against the live table: the audit snapshot may be stale and
+		// an import may have created the entry in the meantime. Inserting would
+		// create a duplicate catalog_items row for the same item_ids.
+		const [existing] = (await db.execute(sql`
+			SELECT id FROM catalog_items WHERE item_ids = ${String(entry.itemId)} LIMIT 1
+		`)) as unknown as [Array<{ id: number }>, unknown];
+		if (existing.length > 0) {
+			skipped++;
+			continue;
+		}
 		let pageId: number;
 		if (organizeSql && parentPageId) {
 			const catKey = classifyFurni(entry.classname, entry.itemType);