Use "admin" / "password" for Admin, or "user" / "password" for User.

For initial setup, insert one admin and one user into the `users` table manually.

Example for `users` table:

                            INSERT INTO users (username, email, password_hash, role) VALUES
                            ('admin', 'admin@example.com', '$2y$10$TjG0.zW1Y.aXyF/M/zZ8X.R.E.N.B.H.R.Q.S.T.U.V.W.X.Y.Z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z', 'admin'),
                            ('user', 'user@example.com', '$2y$10$TjG0.zW1Y.aXyF/M/zZ8X.R.E.N.B.H.R.Q.S.T.U.V.W.X.Y.Z.a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z', 'user');
                        

(Note: password_hash here is for 'password'. You should use `password_hash('yourpassword', PASSWORD_DEFAULT)` in PHP to generate proper hashes.)