File Upload API (workflow)

When the user wants file upload functionality in a React UI bundle, follow this workflow. This feature provides APIs only — you must build the UI components yourself using the provided APIs.

CRITICAL: This is an API-only package

The package exports programmatic APIs, not React components or hooks. You will:

• Use the upload() function to handle file uploads with progress tracking
• Build your own custom UI (file input, dropzone, progress bars, etc.)
• Track upload progress through the onProgress callback

Do NOT:

• Expect pre-built components like <FileUpload /> — they are not exported
• Try to import React hooks like useFileUpload — they are not exported
• Look for dropzone components — they are not exported

The source code contains reference components for demonstration, but they are not available as imports. Use them as examples to build your own UI.