[Feature Request] Automatically run User-defined Script when Session opens

Hello!
When I open an existing session to a remote server, I hope it can automatically run pre-defined scripts, such as:
1. open certain file, e.g., `cat ~/.bash_profile`
2. open some dynamic command, e.g., `watch -n 1 "ps -ef | grep -v grep | grep mysqld"` or `watch -n 1 "ip a s"`

Thus, when I restart windTerm, the whole groups I created and each session in each can be the same before windTerm restart.

No files, tests, or entry points are identified in the issue. Start by locating the existing-session restore flow and remote command execution path; done means grouped sessions reopen with each session's configured commands run automatically.

Written by the indexing model from the issue text.