feat: add live camera multi-device viewer mode

server/_core/sdk.ts

@@ -260,7 +260,11 @@ class SDKServer {
   }
 
   async authenticateRequest(req: Request): Promise<User> {
-    // Regular authentication flow
+    const authenticated = await this.authenticateRequestWithSession(req);
+    return authenticated.user;
+  }
+
+  async authenticateRequestWithSession(req: Request): Promise<{ user: User; sid: string | null }> {
     const cookies = this.parseCookies(req.headers.cookie);
     const sessionCookie = cookies.get(COOKIE_NAME);
     const session = await this.verifySession(sessionCookie);
@@ -273,7 +277,6 @@ class SDKServer {
     const signedInAt = new Date();
     let user = await db.getUserByOpenId(sessionUserId);
 
-    // If user not in DB, sync from OAuth server automatically
     if (!user) {
       try {
         const userInfo = await this.getUserInfoWithJwt(sessionCookie ?? "");
@@ -300,7 +303,10 @@ class SDKServer {
       lastSignedIn: signedInAt,
     });
 
-    return user;
+    return {
+      user,
+      sid: session.sid ?? null,
+    };
   }
 }