ui race condition fix

webui/src/context/TelemetryContext.jsx

@@ -217,6 +217,14 @@ export function TelemetryProvider({ children }) {
           currentValue: selector(framesRef.current[roverId] ?? EMPTY_FRAME),
         };
         listeners.add(entry);
+
+        // React renders before effects subscribe. A sensor frame can therefore
+        // arrive after the hook's render-time read but before this entry exists.
+        // Publish the exact snapshot used to initialize the subscription so the
+        // component cannot remain stuck on that stale render-time value until a
+        // selected field changes again. Registering first is important: any
+        // frame arriving after this point will also notify the listener normally.
+        listener(entry.currentValue);
         return () => {
           const current = selectorSubscribersRef.current.get(roverId);
           if (!current) return;

webui/src/context/telemetryViews.js

@@ -37,27 +37,6 @@ const EMPTY_MAIN_BRUSH_AUDIO = Object.freeze({
   mainBrushOvercurrent: false,
 });
 
-// These labels represent an active charging relationship reported by the
-// Roomba. That is independently useful dock evidence: some already-docked
-// rovers report charging before the home-base contact bit changes again.
-const DOCKED_CHARGING_STATES = new Set([
-  'reconditioning charging',
-  'full charging',
-  'trickle charging',
-  'waiting',
-]);
-
-export function isDockedChargingState(chargingStateLabel) {
-  return DOCKED_CHARGING_STATES.has(String(chargingStateLabel || '').trim().toLowerCase());
-}
-
-export function resolveDocked(dockTelemetry) {
-  // Dock contact and active charging are complementary sensor evidence, not
-  // fallback state. Treating either as sufficient prevents UI controls from
-  // claiming a charging rover should be driven onto a dock it already occupies.
-  return Boolean(dockTelemetry?.homeBase) || isDockedChargingState(dockTelemetry?.chargingStateLabel);
-}
-
 function bucketNumber(value, step) {
   // Visual widgets do not benefit from repainting for tiny analog jitter. The
   // bucket step intentionally applies only to display selectors; raw telemetry
@@ -147,6 +126,9 @@ export function selectDockTelemetry(frame) {
   return {
     oiModeLabel: sensors.oiMode?.label || 'Unknown',
     chargingStateLabel: sensors.chargingState?.label || '',
+    // OI packet 34 is the authoritative charging-sources packet. Charging
+    // state describes the battery charger state and must not stand in for the
+    // physical home-base contact bit.
     homeBase: Boolean(sensors.chargingSources?.homeBase),
   };
 }