fix: disconnect from spaces and redirect on EncryptID sign-out

Prevents stale WebSocket reconnect loops after sign-out by adding an
intentional-disconnect flag to CommunitySync. Canvas and shell pages
now redirect to homepage when the user signs out.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/community-sync.ts

@@ -109,6 +109,7 @@ export class CommunitySync extends EventTarget {
 	#doc: Automerge.Doc<CommunityDoc>;
 	#syncState: SyncState;
 	#ws: WebSocket | null = null;
+	#disconnectedIntentionally = false;
 	#communitySlug: string;
 	#shapes: Map<string, FolkShape> = new Map();
 	#pendingChanges: boolean = false;
@@ -228,8 +229,9 @@ export class CommunitySync extends EventTarget {
 			console.log(`[CommunitySync] Disconnected from ${this.#communitySlug}`);
 			this.dispatchEvent(new CustomEvent("disconnected"));
 
-			// Attempt reconnect
+			if (!this.#disconnectedIntentionally) {
 				this.#attemptReconnect(wsUrl);
+			}
 		};
 
 		this.#ws.onerror = (error) => {
@@ -1134,6 +1136,7 @@ export class CommunitySync extends EventTarget {
 	 * Disconnect from server
 	 */
 	disconnect(): void {
+		this.#disconnectedIntentionally = true;
 		if (this.#ws) {
 			this.#ws.close();
 			this.#ws = null;

website/canvas.html

@@ -1346,6 +1346,13 @@
 			document.addEventListener("auth-change", () => {
 				const sw = document.querySelector("rstack-space-switcher");
 				sw?.reload?.();
+
+				// If signed out, disconnect from space and go home
+				const session = localStorage.getItem("encryptid_session");
+				if (!session) {
+					window.__communitySync?.disconnect?.();
+					window.location.href = "/";
+				}
 			});
 
 			// Load module list for app switcher and tab bar + menu
@@ -1677,6 +1684,7 @@
 			const offlineStore = new OfflineStore();
 			await offlineStore.open();
 			const sync = new CommunitySync(communitySlug, offlineStore);
+			window.__communitySync = sync;
 
 			// Try to load from cache immediately (shows content before WebSocket connects)
 			const hadCache = await sync.initFromCache();

website/shell.ts

@@ -32,4 +32,10 @@ RStackMi.define();
 document.addEventListener("auth-change", () => {
 	const spaceSwitcher = document.querySelector("rstack-space-switcher") as any;
 	spaceSwitcher?.reload?.();
+
+	// If signed out, redirect to homepage
+	const session = localStorage.getItem("encryptid_session");
+	if (!session) {
+		window.location.href = "/";
+	}
 });