e6ecce79ee
Root cause of upload endpoint 500 errors: - config.py defined OSS_DIRECT_UPLOAD_EXPRESS_SECRET (wrong name) - upload.py accessed settings.OSS_DIRECT_UPLOAD_EXPIRE_SECONDS (correct name) - AttributeError on every call to prepare_direct_upload → 500 This fixes both /api/v1/upload/prepare-direct-upload and any other upload endpoints that reference the expire seconds config.