feat: remove lint tool and add lsp integration

lua/chatgpt_nvim/tools/replace_in_file.lua

@@ -1,10 +1,9 @@
 local handler = require("chatgpt_nvim.handler")
-local lint = require("chatgpt_nvim.tools.lint")
+local robust_lsp = require("chatgpt_nvim.tools.lsp_robust_diagnostics")
 
 local M = {}
 
 local function search_and_replace(original, replacements)
-  -- Basic approach: do a global plain text replace for each entry
   local updated = original
   for _, r in ipairs(replacements) do
     local search_str = r.search or ""
@@ -41,15 +40,9 @@ M.run = function(tool_call, conf, prompt_user_tool_accept, is_subpath, read_file
   msg[#msg+1] = string.format("<final_file_content path=\"%s\">\n%s\n</final_file_content>", path, updated_data)
   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
+    local diag_str = robust_lsp.lsp_check_file_content(path, updated_data, 3000)
+    msg[#msg+1] = "\n" .. diag_str
   end
 
   return table.concat(msg, "")