fix(auth): wire cross-session logout in rstack-identity + encryptid profile

rstack-identity is the actual sign-out component used in production.
clearSession() now calls /api/session/logout, and connectedCallback
validates the session with the server to detect revocation. Also
updated the auth.rspace.online profile page handleLogout().

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

shared/components/rstack-identity.ts

@@ -157,6 +157,20 @@ export function getSession(): SessionState | null {
 }
 
 export function clearSession(): void {
+	// Notify server so all other browser sessions get revoked
+	try {
+		const stored = localStorage.getItem(SESSION_KEY);
+		if (stored) {
+			const session = JSON.parse(stored) as SessionState;
+			if (session.accessToken) {
+				fetch(`${ENCRYPTID_URL}/api/session/logout`, {
+					method: "POST",
+					headers: { Authorization: `Bearer ${session.accessToken}` },
+				}).catch(() => { /* best-effort */ });
+			}
+		}
+	} catch { /* ignore */ }
+
 	localStorage.removeItem(SESSION_KEY);
 	localStorage.removeItem("rspace-username");
 	_removeSessionCookie();
@@ -352,6 +366,9 @@ export class RStackIdentity extends HTMLElement {
 			autoProvisionSpace(session.accessToken);
 		}
 
+		// Validate session with server — detects logout from another browser session
+		this.#validateSessionWithServer();
+
 		// Propagate login/logout across tabs via storage events
 		window.addEventListener("storage", this.#onStorageChange);
 	}
@@ -360,6 +377,25 @@ export class RStackIdentity extends HTMLElement {
 		window.removeEventListener("storage", this.#onStorageChange);
 	}
 
+	async #validateSessionWithServer() {
+		const session = getSession();
+		if (!session?.accessToken) return;
+		try {
+			const res = await fetch(`${ENCRYPTID_URL}/api/session/verify`, {
+				headers: { Authorization: `Bearer ${session.accessToken}` },
+			});
+			if (!res.ok) {
+				// Session revoked — clear locally and re-render
+				localStorage.removeItem(SESSION_KEY);
+				localStorage.removeItem("rspace-username");
+				_removeSessionCookie();
+				resetDocBridge();
+				this.#render();
+				this.dispatchEvent(new CustomEvent("auth-change", { bubbles: true, composed: true }));
+			}
+		} catch { /* network error — let token expire naturally */ }
+	}
+
 	#onStorageChange = (e: StorageEvent) => {
 		if (e.key === "encryptid_session" || e.key === PERSONAS_KEY) {
 			this.#render();

src/encryptid/server.ts

@@ -7958,6 +7958,14 @@ app.get('/', (c) => {
     }
 
     window.handleLogout = () => {
+      // Notify server so other browser sessions are revoked
+      const token = localStorage.getItem(TOKEN_KEY);
+      if (token) {
+        fetch('/api/session/logout', {
+          method: 'POST',
+          headers: { Authorization: 'Bearer ' + token },
+        }).catch(() => {});
+      }
       localStorage.removeItem(TOKEN_KEY);
       document.getElementById('auth-form').style.display = 'block';
       document.getElementById('profile').style.display = 'none';