fix: missing end

lua/chatgpt_nvim/init.lua

@@ -414,6 +414,7 @@ function M.run_chatgpt_paste_command()
           vim.api.nvim_err_writeln("Preview not closed in time. Aborting.")
           return
         end
+      end  -- ← ADDED MISSING END HERE
 
       local final_files = data.files
       if conf.partial_acceptance then