-- B07作者偏好及反馈：当前指针和只追加历史分开，评测角色无生产内容权限。
CREATE TABLE public.muse_preference (
    preference_id uuid PRIMARY KEY,
    author_id text NOT NULL,
    current_revision integer NOT NULL CHECK (current_revision > 0)
);
CREATE TABLE public.muse_preference_version (
    preference_id uuid NOT NULL REFERENCES public.muse_preference,
    revision integer NOT NULL CHECK (revision > 0),
    payload jsonb NOT NULL,
    content_hash text NOT NULL CHECK (content_hash ~ '^[0-9a-f]{64}$'),
    state text NOT NULL CHECK (state IN ('pending','active','withdrawn')),
    created_at timestamptz NOT NULL DEFAULT clock_timestamp(),
    PRIMARY KEY (preference_id,revision)
);
CREATE TABLE public.muse_author_feedback (
    feedback_id uuid PRIMARY KEY,
    author_id text NOT NULL,
    command_id text NOT NULL,
    payload jsonb NOT NULL,
    content_hash text NOT NULL CHECK (content_hash ~ '^[0-9a-f]{64}$'),
    created_at timestamptz NOT NULL DEFAULT clock_timestamp(),
    UNIQUE (author_id,command_id)
);
CREATE TRIGGER muse_preference_version_immutable BEFORE UPDATE OR DELETE
    ON public.muse_preference_version FOR EACH ROW
    EXECUTE FUNCTION public.muse_guard_literary_history();
CREATE TRIGGER muse_author_feedback_immutable BEFORE UPDATE OR DELETE
    ON public.muse_author_feedback FOR EACH ROW
    EXECUTE FUNCTION public.muse_guard_literary_history();
REVOKE ALL ON public.muse_preference, public.muse_preference_version,
    public.muse_author_feedback FROM muse_eval;
GRANT SELECT,INSERT,UPDATE ON public.muse_preference TO muse_app;
GRANT SELECT,INSERT ON public.muse_preference_version,public.muse_author_feedback TO muse_app;