Redesign Signal/Channel naming and fix pin-remap breaking references

Arduino analog Signal ids used to be the pin name itself, so fixing a
wrong pin silently changed the id and orphaned any plot trace, control,
or filter pipeline pointing at it. Analog Signal ids are now positional
(ai0, ai1, ...) and decoupled from the underlying pin, matching how
digital I/O already worked.

More broadly, formalizes a Device -> Signal -> Channel -> Plot naming
model (SignalConfig for physical device channels, Channel for derived/
computed ones) and adds core/reference_registry.py to propagate any
Signal or Channel id rename through plot traces, controls, and filter
pipelines instead of leaving them dangling. Signal ids are now editable
in the Signals tab with the same propagation.

.labui profile schema bumped to v2.0 with a transparent migration for
old files, including remapping old pin-name Signal ids to the new
positional ones. Removed six confirmed-dead files (two legacy device
classes, four superseded top-level ui/ duplicates).

1 files changed, 0 insertions, 148 deletions

diff --git a/ui/device_panel.py b/ui/device_panel.py
deleted file mode 100644
index 932f536..0000000
--- a/ui/device_panel.py
+++ /dev/null
@@ -1,148 +0,0 @@
-"""
-ui/device_panel.py  —  Left sidebar: device list with status indicators.
-"""
-
-from PyQt6.QtWidgets import (
-    QWidget, QVBoxLayout, QHBoxLayout, QLabel,
-    QPushButton, QScrollArea, QFrame, QSizePolicy,
-)
-from PyQt6.QtCore import Qt, pyqtSignal, QTimer
-from devices.base_device import DeviceStatus
-from devices.device_registry import DeviceRegistry
-from core.acquisition import AcquisitionEngine
-
-
-_STATUS_STYLE = {
-    DeviceStatus.CONNECTED:    "color:#22c55e;",
-    DeviceStatus.SIMULATED:    "color:#3b82f6;",
-    DeviceStatus.DISCONNECTED: "color:#475569;",
-    DeviceStatus.CONNECTING:   "color:#f59e0b;",
-    DeviceStatus.ERROR:        "color:#ef4444;",
-}
-_STATUS_LABEL = {
-    DeviceStatus.CONNECTED:    "CONNECTED",
-    DeviceStatus.SIMULATED:    "SIMULATED",
-    DeviceStatus.DISCONNECTED: "OFFLINE",
-    DeviceStatus.CONNECTING:   "CONNECTING",
-    DeviceStatus.ERROR:        "ERROR",
-}
-
-
-class DeviceCard(QFrame):
-    config_requested = pyqtSignal(str)
-
-    def __init__(self, device):
-        super().__init__()
-        self.device = device
-        self.setObjectName("deviceCard")
-        self._build()
-
-    def _build(self):
-        layout = QVBoxLayout(self)
-        layout.setContentsMargins(10, 10, 10, 10)
-        layout.setSpacing(5)
-
-        # Header row: icon + name + status dot
-        hdr = QHBoxLayout()
-        icon_lbl = QLabel(self.device.info.icon)
-        icon_lbl.setObjectName("deviceIcon")
-        hdr.addWidget(icon_lbl)
-
-        name_lbl = QLabel(self.device.info.name)
-        name_lbl.setObjectName("deviceName")
-        hdr.addWidget(name_lbl, 1)
-
-        self._dot = QLabel("●")
-        self._dot.setStyleSheet(_STATUS_STYLE.get(self.device.status, "color:#475569;") + " font-size:10px;")
-        hdr.addWidget(self._dot)
-        layout.addLayout(hdr)
-
-        # Device ID
-        id_lbl = QLabel(self.device.info.device_id)
-        id_lbl.setObjectName("deviceSub")
-        layout.addWidget(id_lbl)
-
-        # Status text
-        self._status_lbl = QLabel(_STATUS_LABEL.get(self.device.status, "UNKNOWN"))
-        style = _STATUS_STYLE.get(self.device.status, "color:#475569;")
-        self._status_lbl.setStyleSheet(
-            style + " font-family:'IBM Plex Mono',monospace; font-size:10px; font-weight:700; letter-spacing:1px;"
-        )
-        layout.addWidget(self._status_lbl)
-
-        # Channel count
-        n = sum(1 for c in self.device.info.channels if c.enabled)
-        ch_lbl = QLabel(f"{n} ch  ·  {self.device.info.device_type}")
-        ch_lbl.setObjectName("deviceChannelCount")
-        layout.addWidget(ch_lbl)
-
-        # Config button
-        cfg = QPushButton("Configure")
-        cfg.setObjectName("configButton")
-        cfg.clicked.connect(lambda: self.config_requested.emit(self.device.info.device_id))
-        layout.addWidget(cfg)
-
-    def refresh(self):
-        dot_style   = _STATUS_STYLE.get(self.device.status, "color:#475569;") + " font-size:10px;"
-        label_style = _STATUS_STYLE.get(self.device.status, "color:#475569;") + \
-                      " font-family:'IBM Plex Mono',monospace; font-size:10px; font-weight:700; letter-spacing:1px;"
-        self._dot.setStyleSheet(dot_style)
-        self._status_lbl.setText(_STATUS_LABEL.get(self.device.status, "UNKNOWN"))
-        self._status_lbl.setStyleSheet(label_style)
-
-
-class DevicePanel(QWidget):
-    config_requested = pyqtSignal(str)
-
-    def __init__(self, registry: DeviceRegistry, engine: AcquisitionEngine):
-        super().__init__()
-        self.registry = registry
-        self.engine   = engine
-        self._cards   = {}
-        self._build()
-
-        # Refresh status every 2 s
-        self._timer = QTimer(self)
-        self._timer.setInterval(2000)
-        self._timer.timeout.connect(self._refresh_status)
-        self._timer.start()
-
-    def _build(self):
-        layout = QVBoxLayout(self)
-        layout.setContentsMargins(0, 0, 0, 0)
-        layout.setSpacing(0)
-
-        hdr = QLabel("  DEVICES")
-        hdr.setObjectName("panelHeader")
-        hdr.setMinimumHeight(28)
-        layout.addWidget(hdr)
-
-        scroll = QScrollArea()
-        scroll.setObjectName("deviceScroll")
-        scroll.setWidgetResizable(True)
-        scroll.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
-
-        self._container = QWidget()
-        self._inner = QVBoxLayout(self._container)
-        self._inner.setContentsMargins(8, 8, 8, 8)
-        self._inner.setSpacing(8)
-        self._inner.addStretch()
-
-        scroll.setWidget(self._container)
-        layout.addWidget(scroll)
-
-    def refresh(self):
-        for card in self._cards.values():
-            self._inner.removeWidget(card)
-            card.deleteLater()
-        self._cards.clear()
-
-        for dev in self.registry.all_instances():
-            card = DeviceCard(dev)
-            card.config_requested.connect(self.config_requested.emit)
-            self._inner.insertWidget(self._inner.count() - 1, card)
-            self._cards[dev.info.device_id] = card
-
-    def _refresh_status(self):
-        for dev_id, card in self._cards.items():
-            card.refresh()