add UBX-MON-VER support and surface device identification in CLI/GUI

Add the Ver message parser and a fixed UbxQuery (was unused and had a
broken semaphore/state bug) to poll MON-VER once on connect. The CLI
prints hw/sw version and extensions; the GUI polls it per receiver,
pre-fills the read-only ID field with a connection counter and
rewrites it from the MOD= extension once the device answers, and
propagates the resolved display name to the Sky and Plot tabs so they
no longer show the stale placeholder ID.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XM4FNUjhu9x8df5Dp1hHvd

main.py

@@ -3,6 +3,7 @@ import time
 import json
 import signal
 import argparse
+import threading
 
 from backend.network_backend import NetworkBackend
 from backend.serial_backend  import SerialBackend
@@ -16,8 +17,9 @@ from nmea.messages    import Gll, Gsa, Gsv, Gga, Rmc
 from ubx.ubx          import frame_create
 from ubx.msg_types    import *
 from ubx.packetizer   import UbxPacketizer
-from ubx.messages     import Sig, Sat, RawX, UbxMsg
+from ubx.messages     import Sig, Sat, RawX, Ver, UbxMsg
 from ubx.listener     import UbxListener
+from ubx.query        import UbxQuery
 
 
 # ---------------------------------------------------------------------------
@@ -87,7 +89,8 @@ def _make_listeners(name: str):
 
 
 def wire_source(name: str, backend, log_dir: str | None,
-                loggers: list, transceivers: dict, pacer_delay: float = 0.0):
+                loggers: list, transceivers: dict, ver_queries: dict,
+                pacer_delay: float = 0.0):
 	xcvr = Transceiver(name)
 	backend.register_xcvr(xcvr)
 	transceivers[name] = xcvr
@@ -104,6 +107,10 @@ def wire_source(name: str, backend, log_dir: str | None,
 
 	nmea_rx, ubx_rx = _make_listeners(name)
 
+	ver_query = UbxQuery(xcvr, Ver())
+	ubx_rx.append(ver_query)
+	ver_queries[name] = ver_query
+
 	if pacer_delay > 0:
 		nmea_pacer = ReplayPacer(pacer_delay)
 		ubx_pacer  = ReplayPacer(pacer_delay)
@@ -157,6 +164,7 @@ if __name__ == '__main__':
 	backends    = []
 	loggers     = []
 	transceivers = {}
+	ver_queries = {}
 
 	# Network sources → one shared NetworkBackend
 	net_sources = [s for s in sources if s['type'] == 'network']
@@ -165,13 +173,14 @@ if __name__ == '__main__':
 		                         for s in net_sources])
 		backends.append(net_be)
 		for s in net_sources:
-			wire_source(s['name'], net_be, log_dir, loggers, transceivers)
+			wire_source(s['name'], net_be, log_dir, loggers, transceivers, ver_queries)
 
 	# Serial sources → one SerialBackend each
-	for s in [s for s in sources if s['type'] == 'serial']:
+	serial_sources = [s for s in sources if s['type'] == 'serial']
+	for s in serial_sources:
 		ser_be = SerialBackend(s['device'], s.get('baudrate', 115200))
 		backends.append(ser_be)
-		wire_source(s['name'], ser_be, log_dir, loggers, transceivers)
+		wire_source(s['name'], ser_be, log_dir, loggers, transceivers, ver_queries)
 
 	# File sources → one shared FileBackend (no secondary logging)
 	file_sources = [s for s in sources if s['type'] == 'file']
@@ -182,7 +191,8 @@ if __name__ == '__main__':
 			name = source_id_from_path(s['path'])
 			if name:
 				wire_source(name, file_be, log_dir=None, loggers=loggers,
-				            transceivers=transceivers, pacer_delay=delay)
+				            transceivers=transceivers, ver_queries=ver_queries,
+				            pacer_delay=delay)
 
 	signal.signal(signal.SIGINT,
 	              lambda sig, frm: handler(sig, frm, backends, loggers))
@@ -191,6 +201,21 @@ if __name__ == '__main__':
 		be.connect()
 		be.start()
 
+	# Poll MON-VER once per live (network/serial) source, off the main thread
+	# since UbxQuery.poll() blocks until the response frame arrives.
+	def report_version(name: str, query: UbxQuery):
+		ver = query.poll()
+		if ver is None:
+			return
+		ext = '; '.join(e['extension'] for e in ver['extensions'])
+		print(f"{name}: device hw={ver['hw_version']} sw={ver['sw_version']}"
+		      + (f" ({ext})" if ext else ""))
+
+	for s in net_sources + serial_sources:
+		name = s['name']
+		threading.Thread(target=report_version, args=(name, ver_queries[name]),
+		                 daemon=True).start()
+
 	# Poll loop – only meaningful for network/serial sources
 	net_names = [s['name'] for s in net_sources]
 	if net_names: