{"message":"GLM-4.5V Worker API is running","endpoints":{"health":"GET /health - Health check","chat":"POST /chat - Chat with GLM-4.5V (supports images and text)"},"usage":{"multipart/form-data":"Upload image with text prompt","application/json":"Send text prompt or image URL with text"},"example":{"method":"POST","url":"/chat","headers":{"Content-Type":"application/json"},"body":{"messages":[{"role":"user","content":[{"type":"text","text":"What's in this image?"},{"type":"image_url","image_url":{"url":"https://example.com/image.jpg"}}]}]}}}