refactor(wasabi-storage): improve comments on file deletion process and update description for fileUrl query parameter

src/shared/modules/upload/wasabi-storage/wasabi-storage.controller.ts

@@ -265,7 +265,8 @@ export class WasabiStorageController {
   @ApiQuery({
     name: 'fileUrl',
     required: true,
-    description: 'Can be either: 1) filePath (videos/1234567890-movie.mp4) OR 2) fileUrl (http://localhost:3000/wasabi/file?path=...) from presigned response',
+    description:
+      'Can be either: 1) filePath (videos/1234567890-movie.mp4) OR 2) fileUrl (http://localhost:3000/wasabi/file?path=...) from presigned response',
   })
   async uploadVideoFromDirectUrl(@Query('fileUrl') fileUrl: string) {
     if (!fileUrl) {

src/shared/modules/upload/wasabi-storage/wasabi-storage.service.ts

@@ -711,15 +711,7 @@ export class WasabiStorageService {
         );
       });
 
-      // Delete local temp file (async, don't wait)
-      if (localFilePath) {
-        fs.unlink(localFilePath).catch((error) => {
-          this.logger.error(
-            `Failed to delete local temp file: ${localFilePath}`,
-            error,
-          );
-        });
-      }
+      // Note: Local temp file will be automatically deleted by processVideoAsync after conversion completes
 
       return {
         uploadId,