Use fal.ai to implement AI API

• upload Upload File to CDN and return an URL
• createOrEditImage Use Gemini 3 Pro to create or edit image
• encodeImage Do nothing here
• segmentImage Use SAM to segment image

import { FalAIPlugin } from '@infinite-canvas-tutorial/fal-ai';

new App()
    .addPlugins(
        ...DefaultPlugins,
        UIPlugin,
        FalAIPlugin.configure({
            credentials: 'your-fal-ai-credentials-here',
        }),
    )
    .run();