CREATE TABLE brand_questions (
    id            BIGSERIAL PRIMARY KEY,
    tenant_id     BIGINT NOT NULL REFERENCES tenants(id),
    brand_id      BIGINT NOT NULL REFERENCES brands(id),
    keyword_id    BIGINT NOT NULL REFERENCES brand_keywords(id),
    question_text TEXT NOT NULL,
    status        VARCHAR(20) NOT NULL DEFAULT 'active',
    created_at    TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at    TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    deleted_at    TIMESTAMPTZ
);
CREATE INDEX idx_brand_questions_keyword ON brand_questions(keyword_id);