CREATE TABLE characters (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    rmid INTEGER NOT NULL,
    name TEXT NOT NULL,
    status TEXT NOT NULL,
    species TEXT NOT NULL,
    type TEXT NOT NULL,
    gender TEXT NOT NULL,
    origin_name TEXT NOT NULL,
    origin_url TEXT NOT NULL,
    location_name TEXT NOT NULL,
    location_url TEXT NOT NULL,
    image TEXT NOT NULL,
    episode TEXT NOT NULL, -- store as comma-separated or JSON
    url TEXT NOT NULL,
    created TEXT NOT NULL,
    elo_rating REAL NOT NULL
);