Clarifai is no longer in business. This new build just removes them from our AI backends.

The previous polling code only checked for processing to keep polling, and treated everything else as a successful result. This meant queued, failed, or unexpected responses would be silently saved as scan results.

Now:
- completed — save the result
- queued or processing — keep polling
- Anything else — show the error to the user

Other changes

• Add Chrome Web Store assets (screenshots, promo images, promo generator)
• Update README and listing content

What's new in 1.1.0:
- Alt Text role for generating concise, accessibility-focused image descriptions
- Language support: get descriptions in 160+ languages
- Updated backend terminology for consistency