net: initialize the monitor in the startup equip path (v2.7.1)

The startup init (server booted with the card already in the reader) equips
the card and reads the ICCID itself, but never created server.net_state -
only /api/command equip and the auto-equip worker did.  With a card present
at boot the monitor stayed empty, net-sim responses carried net_state: null
and the panel only started updating after pressing Refresh (which lazily
created the state).  Fix:

- factor _netstate_read(app) / _netstate_install() / _netstate_init() in
  server.py; _apply_equipped_card uses _netstate_init()
- __main__ startup: read the monitored EFs in the same CAT-free window as
  the ICCID and install the state once the server object exists
- _netstate_ensure() lazily initializes the state in the net-sim/event hooks
  so any equip path predating the monitor cannot leave it dead
- netSimRun falls back to netStateFetch() when a response has no net_state
- tests: tests/test_netstate_server.py (candidate order, record vs
  transparent, absent files, install, ensure); SW cache simple-v204

pysim_simple_server/__main__.py

@@ -13,7 +13,7 @@ from pySim.cards import UiccCardBase
 
 from .shell import load_pysim_app
 from . import fastinit
-from .server import PysimHandler, StderrApduTracer, _LoggingApduTracer, VERSION, _send_terminal_profile, _DefaultProactiveHandler, _handle_proactive_chain, _send_status, _init_proactive_session, _timing_on, _tlog, _set_menu_timeout, start_card_monitor, set_auto_equip, _read_iccid, _LineFilter
+from .server import PysimHandler, StderrApduTracer, _LoggingApduTracer, VERSION, _send_terminal_profile, _DefaultProactiveHandler, _handle_proactive_chain, _send_status, _init_proactive_session, _timing_on, _tlog, _set_menu_timeout, start_card_monitor, set_auto_equip, _read_iccid, _netstate_read, _netstate_install, _LineFilter
 
 
 _server_start = 0
@@ -167,6 +167,7 @@ def main():
     if app is not None and opts.fast_init:
         fastinit.install(app)
     iccid = None
+    netstate_files = None
     if scc and card is not None and hasattr(scc, '_tp'):
         scc._tp.apdu_tracer = _LoggingApduTracer()
         try:
@@ -176,6 +177,12 @@ def main():
             iccid = _read_iccid(app)
             if iccid:
                 sys.stderr.write('INIT: ICCID %s\n' % iccid)
+                # Network state monitor: read the network-related EFs in the
+                # same CAT-free window (skipped without a readable ICCID).
+                try:
+                    netstate_files = _netstate_read(app)
+                except Exception:
+                    netstate_files = None
             t_phase = time.time()
             sys.stderr.write('INIT: sending TERMINAL PROFILE %s (CLA=%s)\n' % (opts.terminal_profile, scc.cat_cla))
             sm, el = _send_terminal_profile(scc, opts.terminal_profile)
@@ -231,6 +238,14 @@ def main():
     server.card_present = card is not None
     server.card_session = 1 if card is not None else 0
     server.iccid = iccid
+    # Network state monitor: install the state read during the startup init
+    # (right after the ICCID, before the TERMINAL PROFILE).  No readable
+    # ICCID means the card is considered unusable - give up.
+    try:
+        _netstate_install(server, netstate_files if iccid else None)
+    except Exception as e:
+        server.net_state = None
+        sys.stderr.write('INIT: network state failed: %s\n' % e)
     server.equipping = False
     # Set server reference for polling timer and mark the card session state
     import pysim_simple_server.server