fix: select the ISD-R before the profile switch command

The switch refactor dropped the ISD-R selection that the old
_transceive/_run wrapper performed, so the STORE DATA went to whatever
application was selected (MF after a preceding ES10 call) and the card
answered 6D00 ('instruction not supported') without ever reaching the
switch flow.

- esim.switch_profile() now takes the app, selects the ISD-R before
  sending the raw STORE DATA and restores the selection in a finally,
  like the other ES10 functions.
- tests assert the selection and the restore for the 9000 and 91XX
  paths (the FakeLchan/rs already track both).

pysim_simple_server/server.py

@@ -3861,7 +3861,7 @@ class PysimHandler(BaseHTTPRequestHandler):
                     _finish_pending_menu(self.server, self.server.scc)
                     cursor = _PROACTIVE_ENTRY_ID
                     resp = esim.switch_profile(
-                        self.server.scc._tp.send_apdu,
+                        app, self.server.scc._tp.send_apdu,
                         lambda sw: _esim_refresh_chain(self.server, sw),
                         action, iccid=body.get('iccid'),
                         isdp_aid=body.get('isdp_aid'),