Solve Issue 1643, imageDescriptionService not working with other providers than OpenAI

Author: nusk0

packages/plugin-node/src/services/image.ts

@@ -206,10 +206,11 @@ export class ImageDescriptionService
                         },
                     },
                 ];
-
+                // If model provider is openai, use the endpoint, otherwise use the default openai endpoint
                 const endpoint =
-                    models[this.runtime.imageModelProvider].endpoint ??
-                    "https://api.openai.com/v1";
+                    this.runtime.imageModelProvider === ModelProviderName.OPENAI
+                    ? models[this.runtime.imageModelProvider].endpoint
+                    : "https://api.openai.com/v1";
 
                 const response = await fetch(endpoint + "/chat/completions", {
                     method: "POST",