Checks if the uploaded file has an allowed extension.

Parses and validates all incoming request parameters. Returns a dictionary of validated arguments or raises ValueError.

Accepts image generation requests, adds them to a queue, and returns a job ID for status polling.

Provides frontend configuration, including the dynamic API base URL.

Serves the generated image if the job is complete.

Provides the status of a specific job.

The worker function that runs in a background thread. It continuously pulls jobs from the queue and processes them.

Periodically cleans up old, completed jobs to free up memory and disk space.