cf worker that uses aws rekognition's DetectModerationLabels to check the safety of an image

this also includes scuffed auth for /labels endpoint, so you can't just use this worker without the secret key

CF don't charge for the compute time that's caused by waiting for the rekognition api to respond, also easier to deploy than on lambda imo

1. install wrangler & authenticate with cloudflare if you haven't already
2. define aws credentials AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY (set with wrangler secret put)
3. generate a bearer token that's cryptographically generated and set it as BEARER_TOKEN (or just remove the code responsible if you don't want auth)
4. deploy to cloudflare pnpm run deploy