fix: revise dingus error message to surface context size issue; update changelog

src/app/api/proxy/route.ts

@@ -528,7 +528,7 @@ export async function POST(request: NextRequest) {
     console.error("Error processing request:", error);
 
     const errorMessage =
-      "You dingus, read the directions on sucker before trying again.";
+      "You dingus, read the directions on sucker before trying again. If you're trying to suck a bot with more tokens than your current context limit, try bumping your Context Size setting up on Generation Settings.";
 
     // Check if this was a streaming request
     const acceptHeader = request.headers.get("accept");