feat: add the possibility to delete files. and restrict the editing of files to inside the project

lua/chatgpt_nvim/handler.lua

@@ -32,6 +32,18 @@ function M.write_file(filepath, content)
   uv.fs_close(fd)
 end
 
+function M.delete_file(filepath)
+  local st = uv.fs_stat(filepath)
+  if st then
+    local success, err = uv.fs_unlink(filepath)
+    if not success then
+      vim.api.nvim_err_writeln("Could not delete file: " .. filepath .. " - " .. (err or "unknown error"))
+    end
+  else
+    vim.api.nvim_err_writeln("File not found, cannot delete: " .. filepath)
+  end
+end
+
 function M.finish()
   print("Finished processing files.")
 end