#7 isAdmin trusted from unsigned cookie:
- isAdmin is derived server-side from Emby Policy at login time
- Cookie is now signed (HMAC) when COOKIE_SECRET env var is set;
Express rejects tampered signatures (signedCookies returns false)
- dashboard.js /user-downloads and /status now use requireAuth
middleware (req.user) instead of re-parsing cookie directly
#8 cookie-parser used without signing secret:
- cookieParser(COOKIE_SECRET) in index.js when env var is set
- Hard-fails at startup in production if COOKIE_SECRET unset
- Warns in development
#9 Cookie JSON parsed without schema validation:
- parseSessionCookie() in auth.js and requireAuth.js both validate:
id (non-empty string), name (non-empty string), isAdmin (boolean)
- Invalid/tampered cookies return null / 401 respectively