adds the ability to rename chats

server/src/routes.ts

@@ -754,9 +754,13 @@ export async function registerRoutes(app: FastifyInstance) {
     const suggestedRaw = await generateChatTitle(body.content);
     const title = normalizeSuggestedTitle(suggestedRaw, fallback);
 
-    const chat = await prisma.chat.update({
-      where: { id: body.chatId },
+    await prisma.chat.updateMany({
+      where: { id: body.chatId, title: existing.title },
       data: { title },
+    });
+
+    const chat = await prisma.chat.findUnique({
+      where: { id: body.chatId },
       select: {
         id: true,
         title: true,
@@ -768,6 +772,7 @@ export async function registerRoutes(app: FastifyInstance) {
         lastUsedModel: true,
       },
     });
+    if (!chat) return app.httpErrors.notFound("chat not found");
 
     return { chat: serializeProviderFields(chat) };
   });