guarding component web socket a little better

src/pages/Device.tsx

@@ -172,15 +172,25 @@ export default function DevicePage() {
   // Streams all component changes for this device.
   // When the backend receives a new reading and updates a component,
   // this fires and updates the component in state without a page refresh.
-  useWebSocket<{ key: string; component: Component }>({
-    path: `/v1/live/devices/${deviceID}/components`,
+  useWebSocket<{ key: string; component: Component } | null>({
+    path: `/live/devices/${deviceID}/components`,
     parse: (e) => {
+      try {
         const raw = JSON.parse(e.data);
         const comp = Component.any(raw);
+        if (!comp?.settings) {
+          console.warn("[ws] received component without settings:", raw);
+          return null;
+        }
         return { key: comp.key(), component: comp };
+      } catch (err) {
+        console.warn("[ws] failed to parse component:", err);
+        return null;
+      }
     },
-    onMessage: ({ key, component }) => {
-      // Functional update so we always work with the latest state
+    onMessage: (data) => {
+      if (!data) return;
+      const { key, component } = data;
       setComponents((prev) => {
         const updated = new Map(prev);
         updated.set(key, component);