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

gui/sky_tab.py

@@ -34,6 +34,7 @@ class SkyTab(QWidget):
         self._pdop:        dict = {}   # rid -> float
         self._info_cards:  dict = {}   # rid -> QFrame
         self._info_labels: dict = {}   # rid -> (lbl_pdop, lbl_visible, lbl_used)
+        self._name_labels: dict = {}   # rid -> QLabel (receiver display name)
         self._trail:       dict = {}   # (rid, gnss_id, sv_id) -> deque[(elev, azim)]
         self._hi_timers:   dict = {}   # (rid, gnss_id, sv_id) -> QTimer
 
@@ -113,6 +114,7 @@ class SkyTab(QWidget):
         model.receiver_removed.connect(self._on_receiver_removed)
         model.satellite_update.connect(self._on_sat_update)
         model.pdop_update.connect(self._on_pdop_update)
+        model.version_update.connect(self._on_version_update)
 
     # ── Source list management ────────────────────────────────────────────────
 
@@ -136,6 +138,7 @@ class SkyTab(QWidget):
             cl.addWidget(w)
         self._info_cards[rid]  = card
         self._info_labels[rid] = (lbl_pdop, lbl_visible, lbl_used)
+        self._name_labels[rid] = name_lbl
         self._info_layout.insertWidget(self._info_layout.count() - 1, card)
 
     def _on_receiver_removed(self, rid: str):
@@ -151,6 +154,20 @@ class SkyTab(QWidget):
             self._info_layout.removeWidget(card)
             card.deleteLater()
         self._info_labels.pop(rid, None)
+        self._name_labels.pop(rid, None)
+        self._refresh_immediate()
+
+    def _on_version_update(self, rid: str, device_id: str, sw_version: str):
+        label = self._model.display_name(rid)
+        for i in range(self._src_list.count()):
+            item = self._src_list.item(i)
+            if item.data(Qt.UserRole) == rid:
+                item.setText(f"  {label}  ")
+                break
+        lbl = self._name_labels.get(rid)
+        if lbl:
+            lbl.setText(f"<b>{label}</b>")
+        self._table_keys = []   # force a full rebuild so the Receiver column updates
         self._refresh_immediate()
 
     def _selected_rids(self) -> set:
@@ -297,7 +314,7 @@ class SkyTab(QWidget):
             self._table.setItem(row, 3, cell(f"{sat.azimuth:.0f}"))
             self._table.setItem(row, 4, cell(f"{sat.cno:.1f}"))
             self._table.setItem(row, 5, cell("✓" if sat.used_in_fix else ""))
-            self._table.setItem(row, 6, cell(rid))
+            self._table.setItem(row, 6, cell(self._model.display_name(rid)))
             msg_item = QTableWidgetItem("")
             msg_item.setTextAlignment(Qt.AlignCenter)
             msg_item.setBackground(brush)