fix(soba): set active state in onProgress to match R3F Drei behavior

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: nartc

libs/soba/loaders/src/lib/progress.ts

@@ -83,6 +83,7 @@ export function progress(injector?: Injector) {
 			if (loaded === total) saveLastTotalLoaded = total;
 
 			progressState.update({
+				active: true,
 				item,
 				loaded,
 				total,