feat: improve AI Chat UX, add notebook summary, and fix shared/reminders routing

memento-note/app/api/chat/route.ts

@@ -273,22 +273,21 @@ Focus ONLY on this note unless asked otherwise.`
 
   const provider = getChatProvider(sysConfig)
   const result = await streamText({
-    model: provider.chatModel,
+    model: provider.getModel(),
     system: systemPrompt,
     messages: incomingMessages,
     tools: chatTools,
     maxSteps: 5,
     onFinish: async (final) => {
-      // Save messages to DB
       const userContent = incomingMessages[incomingMessages.length - 1].content
-      await prisma.message.create({
+      await prisma.chatMessage.create({
         data: { conversationId: conversation.id, role: 'user', content: userContent }
       })
-      await prisma.message.create({
+      await prisma.chatMessage.create({
         data: { conversationId: conversation.id, role: 'assistant', content: final.text }
       })
     }
   })
 
-  return result.toDataStreamResponse()
+  return result.toUIMessageStreamResponse()
 }