CREATE TABLE IF NOT EXISTS cards (
    id         INTEGER PRIMARY KEY AUTOINCREMENT,
    project_id INTEGER NOT NULL REFERENCES projects (id) ON DELETE CASCADE,
    text       TEXT NOT NULL,
    complete   INTEGER NOT NULL DEFAULT 0 CHECK (complete IN (0, 1)),
    position   INTEGER NOT NULL DEFAULT 0,
    created_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
    updated_at TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
);

CREATE INDEX IF NOT EXISTS idx_cards_project_position ON cards (project_id, position);