Handle leftover git am state in patches script

…nnect

Add automation/daemon.py implementing the persistent browser daemon MVP.
A Carbonyl browser starts once as a forked background process and stays
running, exposing a Unix domain socket at $CARBONYL_SESSION_DIR/<name>.sock.

Callers reconnect to the live process via CarbonylBrowser(session=name).open()
which detects the daemon socket and connects instead of spawning a new browser.
Auth cookies, localStorage, and in-page state are preserved between connections
because the Chromium process never restarts.

Key API:
  start_daemon(session, url) → forks daemon, waits for socket ready
  stop_daemon(session)       → graceful close command
  is_daemon_live(session)    → socket probe
  DaemonClient               → thin socket proxy (send/click/drain/page_text/…)

CarbonylBrowser changes:
  .open()       → auto-detects live daemon and reconnects
  .disconnect() → releases socket without stopping browser
  .close()      → sends close command when in daemon mode

CLI:
  python automation/daemon.py start <session> [url]
  python automation/daemon.py stop  <session>
  python automation/daemon.py status
  python automation/daemon.py attach <session>  # interactive REPL

Also fix DaemonClient._rpc() to extend socket timeout for drain commands
(drain seconds + 10s) to prevent premature timeout on long waits.

Closes fathyb#15