feat: remove lint tool and add lsp integration

lua/chatgpt_nvim/config.lua

@@ -51,7 +51,7 @@ function M.load()
     enable_chunking = false,
     enable_step_by_step = true,
 
-    -- If auto_lint is true, we'll run a quick linter after editing or replacing files.
+    -- If auto_lint is true, we only do LSP-based checks.
     auto_lint = false,
 
     tool_auto_accept = {
@@ -109,7 +109,7 @@ function M.load()
           config.enable_step_by_step = result.enable_step_by_step
         end
 
-        -- New: load auto_lint if present
+        -- auto_lint controls whether we do LSP-based checks
         if type(result.auto_lint) == "boolean" then
           config.auto_lint = result.auto_lint
         end