Fix Chromium autofill timing bug + RDP anti-idle to prevent lock screen

- universal-runtime: set _state[profile_dir] AFTER _start_process so
  _stop_current does not delete the freshly-created profile before
  Chromium reads it. Without this, Login Data was being wiped.
- rdp-proxy: add xdotool dependency and background anti_idle_loop that
  sends Shift to the xfreerdp window every 30s, forwarded over RDP to
  reset the remote idle timer and keep the lock screen from kicking in.

universal-runtime/manager.py

@@ -236,7 +236,6 @@ def open_web(
 ) -> None:
     safe_w, safe_h = apply_resolution(width, height)
     profile_dir = _create_chrome_profile(login, password, url)
-    _state["profile_dir"] = profile_dir
     cmd = [
         "chromium",
         "--no-sandbox",
@@ -261,6 +260,7 @@ def open_web(
         url,
     ]
     _start_process(cmd, "web", url)
+    _state["profile_dir"] = profile_dir
 
 
 def open_rdp(payload: dict) -> None: