feat: card-driven STATUS polling and the Poll Interval Negotiation event (v3.5.9)

- EVENT_NAMES (server + PWA) corrected against TS 102 223 v18.3.0 8.25:
  0x14 is "Access technology change (multiple)" (not Change of UICC
  Access), 0x19 Profile container, 0x1A Void, 0x1B Secured profile
  container, 0x1C Poll interval negotiation, 0x20-0x22 reserved.  Values
  the CAT spec leaves "Reserved for 3GPP" now carry the concrete TS 31.111
  event name + clause (0x11 (I-)WLAN access status, 0x12 Network
  rejection, 0x15 CSG cell selection, 0x17 IMS registration, 0x18 Incoming
  IMS data, 0x1D Data connection status change, 0x1E CAG cell selection,
  0x1F Slices status change).
- Poll Interval Negotiation (0x1C) in the Phone tab: the form proposes a
  Duration (unit + interval) and the UICC's answer (TS 102 223 8.97
  accepted / rejected / modified + optional Duration) is decoded and
  shown; a "modified" duration becomes the background poll interval.  The
  form appears when the card subscribed to the event, like every other.
- Polling emulation is card-driven: a POLL INTERVAL adopts its Duration
  (minutes/seconds/tenths -> 1..255 s, logged) for the background poll,
  is echoed in the TERMINAL RESPONSE (6.8.4) and clears a POLLING OFF
  suspension; POLLING OFF (6.4.14) suspends proactive polling until a new
  POLL INTERVAL - the manual Send STATUS button and presence detection are
  unaffected.  /api/poll-status and /api/poll-toggle report card_disabled
  (+ a warning when enabling while suspended); the PWA shows it in amber.
- Tests: tests/test_poll.py +7, test_proactive_names.py +3, frontend
  event_forms +2 and poll_ui (4).  Help EN/RU, docs/api.md, AGENTS.

573 frontend / 439 Python green; version 3.5.9; sw cache simple-v262.

tests/test_proactive_names.py

@@ -7,7 +7,7 @@ missing entry makes the proactive log show the generic 'Cmd 0x01' fallback.
 
 import unittest
 
-from pysim_simple_server.server import PROACTIVE_TYPE_NAMES
+from pysim_simple_server.server import EVENT_NAMES, PROACTIVE_TYPE_NAMES
 
 
 class ProactiveTypeNamesTests(unittest.TestCase):
@@ -34,5 +34,43 @@ class ProactiveTypeNamesTests(unittest.TestCase):
             self.assertTrue(isinstance(name, str) and name, hex(value))
 
 
+class EventNamesTests(unittest.TestCase):
+    """Event list names follow TS 102 223 v18.3.0 8.25; the values the CAT
+    spec leaves "Reserved for 3GPP" carry the TS 31.111 event name."""
+
+    def test_reassigned_values_match_the_pinned_spec(self):
+        for value, name in [
+            (0x0B, 'Access technology change (single)'),
+            (0x14, 'Access technology change (multiple)'),
+            (0x19, 'Profile container'),
+            (0x1A, 'Void'),
+            (0x1B, 'Secured profile container'),
+            (0x1C, 'Poll interval negotiation'),
+            (0x20, 'Reserved for 3GPP (future usage)'),
+        ]:
+            self.assertEqual(EVENT_NAMES[value], name, hex(value))
+
+    def test_3gpp_reserved_events_carry_their_3gpp_name(self):
+        for value, fragment, clause in [
+            (0x11, '(I-)WLAN access status', 'TS 31.111 7.5.1'),
+            (0x12, 'Network rejection', 'TS 31.111 7.5.2'),
+            (0x15, 'CSG cell selection', 'TS 31.111 7.5.3'),
+            (0x17, 'IMS registration', 'TS 31.111 7.5.21'),
+            (0x18, 'Incoming IMS data', 'TS 31.111 7.5.20'),
+            (0x1D, 'Data connection status change', 'TS 31.111 7.5.25'),
+            (0x1E, 'CAG cell selection', 'TS 31.111 7.5.26'),
+            (0x1F, 'Slices status change', 'TS 31.111 7.5.27'),
+        ]:
+            name = EVENT_NAMES[value]
+            self.assertIn('Reserved for 3GPP', name, hex(value))
+            self.assertIn(fragment, name, hex(value))
+            self.assertIn(clause, name, hex(value))
+
+    def test_names_are_nonempty_strings(self):
+        for value, name in EVENT_NAMES.items():
+            self.assertIsInstance(value, int)
+            self.assertTrue(isinstance(name, str) and name, hex(value))
+
+
 if __name__ == '__main__':
     unittest.main()