from pathlib import Path
src=Path(r'C:\kefu\wechat_rpa\wechat_gui_qt.py').read_text(encoding='utf-8-sig')
p=Path(r'C:\wechat_rpa\wechat_gui_qt.py')
dst=p.read_text(encoding='utf-8-sig')
base=Path(r'C:\kefu\deploy\patient-session-20260918\baseline\production\wechat_gui_qt.py').read_text(encoding='utf-8-sig')
assert dst==base,'production GUI changed since task baseline'
a='class PatientBindingDialog(';b='class ConsoleBridge('
dst=dst[:dst.index(a)]+src[src.index(a):src.index(b)]+dst[dst.index(b):]
a='    def _keepalive_patient_session(';b='    def _check_desktop_session('
dst=dst.replace(b,src[src.index(a):src.index(b)]+b,1)
dst=dst.replace('class MainWindow(QMainWindow):\n    desktopSessionChecked = Signal(str, object)\n','class MainWindow(QMainWindow):\n    desktopSessionChecked = Signal(str, object)\n    patientSessionChecked = Signal(object)\n',1)
a='        self._patient_keepalive_running = False\n        self._patient_session_state = "unknown"\n';b='        self._desktop_session_check_running = False\n        self._desktop_session_state = "valid"\n'
dst=dst.replace(b,src[src.index(a):src.index(b)]+b,1)
compile(dst,str(p),'exec')
p.write_text(dst,encoding='utf-8',newline='\n')
print('production GUI patched; protocol-specific sections preserved')