feat(chats): update chat service to include chatflow relation

Update getChatById to include chatflow relation in the query, enabling direct access to chatflow data from the chat entity

packages/server/src/services/chats/index.ts

@@ -35,6 +35,7 @@ const getChatById = async (chatId: string, user: IUser) => {
                 organization: { id: user.organizationId }
             },
             relations: {
+                chatflow: true
                 // users: true,
                 // messages: true
             },