Fix: generate title from user message — use only text parts (#1279)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

lib/ai/prompts.ts

@@ -112,3 +112,9 @@ export const updateDocumentPrompt = (
 
 ${currentContent}`;
 };
+
+export const titlePrompt = `\n
+    - you will generate a short title based on the first message a user begins a conversation with
+    - ensure it is not more than 80 characters long
+    - the title should be a summary of the user's message
+    - do not use quotes or colons`