feat: add lint tool

lua/chatgpt_nvim/tools/edit_file.lua

@@ -1,4 +1,6 @@
 local handler = require("chatgpt_nvim.handler")
+local lint = require("chatgpt_nvim.tools.lint")
+
 local M = {}
 
 M.run = function(tool_call, conf, prompt_user_tool_accept, is_subpath, read_file)
@@ -14,13 +16,26 @@ M.run = function(tool_call, conf, prompt_user_tool_accept, is_subpath, read_file
     return string.format("Tool [edit_file for '%s'] REJECTED. Path outside project root.", path)
   end
 
+  -- 1) Write the new content
   handler.write_file(path, new_content, conf)
+
   local msg = {}
   msg[#msg+1] = string.format("Tool [edit_file for '%s'] Result:\nThe content was successfully saved to %s.", path, path)
   msg[#msg+1] = "\nHere is the full, updated content of the file that was saved:\n"
   msg[#msg+1] = string.format("<final_file_content path=\"%s\">\n%s\n</final_file_content>", path, new_content)
   msg[#msg+1] = "\nIMPORTANT: For any future changes to this file, use the final_file_content shown above as your reference.\n"
 
+  -- 2) Lint check if enabled
+  if conf.auto_lint then
+    local output, err = lint.lint_file(path)
+    if output then
+      msg[#msg+1] = "\n--- Lint Results ---\n"
+      msg[#msg+1] = output
+    else
+      msg[#msg+1] = "\n(Lint) " .. (err or "Could not lint this file.")
+    end
+  end
+
   return table.concat(msg, "")
 end