v3: added opengraph support to the app, wrote README instructions incl. a Docker image

src/contexts/WSProvider.tsx

@@ -35,6 +35,7 @@ interface WSProviderProps {
   children: ReactNode;
   token: string | null;
   userId: string | null;
+  onForceLogout?: () => void;
 }
 
 const MAX_BACKOFF = 30_000;
@@ -54,7 +55,9 @@ function parseWSMessage(data: string): IncomingWSMessage | null {
   }
 }
 
-export function WSProvider({ children, token, userId }: WSProviderProps) {
+export function WSProvider(
+  { children, token, userId, onForceLogout }: WSProviderProps,
+) {
   const [onlineUsers, setOnlineUsers] = useState<OnlineUser[]>([]);
   const [voteCounts, setVoteCounts] = useState<Record<string, number>>({});
   const [myVotes, setMyVotes] = useState<Set<string>>(new Set());
@@ -264,6 +267,10 @@ export function WSProvider({ children, token, userId }: WSProviderProps) {
             break;
           }
 
+          case "force_logout":
+            onForceLogout?.();
+            break;
+
           case "error":
             // On error, revert any pending optimistic update for the affected dump
             // (the revert timeout will handle it)