CREATE TABLE users (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name TEXT NOT NULL,
    email TEXT NOT NULL UNIQUE,
    hashed_password TEXT NOT NULL,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

-- Add a trigger to keep timestamp updated.
CREATE TRIGGER users_update_timestamp
AFTER UPDATE ON users
FOR EACH ROW
BEGIN
    UPDATE users SET updated_at = CURRENT_TIMESTAMP WHERE id = OLD.id;
END;