{"message":"Retail AI Backend API","version":"1.0.0","endpoints":{"health":"/health","auth":{"signUp":"POST /api/auth/signup","signIn":"POST /api/auth/signin","signOut":"POST /api/auth/signout","session":"GET /api/auth/session","googleAuth":"POST /api/auth/sign-in/social { provider: \"google\" }","googleCallback":"GET /api/auth/callback/google","betterAuth":"/api/auth/* (Better Auth endpoints)"},"docs":"/api/docs","openapi":"/api/openapi.json"}}