initial change to tools logic

lua/chatgpt_nvim/tools/execute_command.lua

@@ -0,0 +1,17 @@
+local M = {}
+
+M.run = function(tool_call, conf, prompt_user_tool_accept, is_subpath, read_file)
+  local cmd = tool_call.command
+  if not cmd then
+    return "[executeCommand] Missing 'command'."
+  end
+  local handle = io.popen(cmd)
+  if not handle then
+    return string.format("Tool [executeCommand '%s'] FAILED to popen.", cmd)
+  end
+  local result = handle:read("*a") or ""
+  handle:close()
+  return string.format("Tool [executeCommand '%s'] Result:\n%s", cmd, result)
+end
+
+return M