Upload tab should show supported file types and explain guest/wallet requirements

[chopperdaddy]

Summary

The Upload tab has a clear dropzone, but it only shows Max 1 MB per file. It does not show supported file types or explain whether guests can upload/preview/inscribe.

Steps to reproduce

1. Continue as Guest
2. Go to Create
3. Click Upload

Current behavior

Dropzone copy:

Drop your file here
or click to browse
Max 1 MB per file

Disabled Inscribe button appears with no reason.

Missing context

• Supported file types
• Whether multiple files are allowed
• What happens after choosing a file
• Whether guests can upload/preview
• Whether wallet connection is required before inscription
• Why Inscribe is disabled

Suggested improvement

Add requirement copy inside or below the dropzone:

Supports PNG, JPG, GIF, SVG, HTML, TXT, JSON. Max 1 MB.

If applicable:

Guests can upload and preview files. Connect a wallet to inscribe.

For disabled button state:

Select a supported file to continue. Wallet required before inscription.

Priority

Medium-high.