{"service":"Pixelyte — Image Upscaler API","version":"1.1.0","engine":"Real-ESRGAN / SwinIR (ONNX Runtime, CPU)","endpoints":{"POST /api/upscale":"Upscale an image 4x (multipart file + optional model)","GET  /api/models":"List available upscale engines","GET  /results/{file}":"Serve upscaled files (expires 5 min)","GET  /docs":"Interactive API docs (Swagger UI)"}}