feat: Add automatic database consistency fix to furniture imports

- Added fixDatabaseConsistencyAfterImport() function in furni-import.ts
  * Fills empty catalog_name from items_base.public_name
  * Sets have_offer = '1' where it was '0'
  * Returns counts of fixes applied

- Integrated fix into import flows:
  * src/app/api/admin/import/furni/route.ts (single & batch POST)
  * src/app/api/admin/import/furni/batch/route.ts (SSE batch POST)

- API responses now include:
  * catalogNameFixed: number of catalog names filled
  * haveOfferFixed: number of have_offer values fixed

- Ensures 100% catalog_name coverage and have_offer=1 after every import
- Typecheck, lint, and all 827 tests pass

src/lib/services/furni-import.ts

@@ -1086,6 +1086,37 @@ async function realNitroModes(classname: string): Promise<number | undefined> {
 	}
 }
 
+/** Fix database consistency after import:
+ *  1. Fill empty catalog_name from items_base.public_name
+ *  2. Set have_offer = '1' where it was '0'
+ * Returns { catalogNameFixed, haveOfferFixed } with counts. */
+export async function fixDatabaseConsistencyAfterImport(): Promise<{
+	catalogNameFixed: number;
+	haveOfferFixed: number;
+}> {
+	// 1. Fill empty catalog_name from items_base.public_name
+	const [nameResult] = (await db.execute(sql`
+    UPDATE catalog_items c
+    JOIN items_base i ON c.item_ids = i.id
+    SET c.catalog_name = CASE
+      WHEN i.public_name LIKE '%*%' THEN SUBSTRING_INDEX(i.public_name, '*', 1)
+      ELSE i.public_name
+    END
+    WHERE c.catalog_name IS NULL OR c.catalog_name = ''
+  `)) as unknown as [Record<string, unknown>, unknown];
+	const catalogNameFixed = Number(nameResult.affectedRows ?? 0);
+
+	// 2. Set have_offer = '1' where it was '0'
+	const [offerResult] = (await db.execute(sql`
+    UPDATE catalog_items
+    SET have_offer = '1'
+    WHERE have_offer = '0'
+  `)) as unknown as [Record<string, unknown>, unknown];
+	const haveOfferFixed = Number(offerResult.affectedRows ?? 0);
+
+	return { catalogNameFixed, haveOfferFixed };
+}
+
 /** Verify and fix interaction values for ALL furniture in items_base.
  * Run after import to ensure every item's interaction_type, modes count and
  * sit/lay/stand flags match the real furniture data. Only items with