export type RequirementDimension = "api" | "persistence" | "all";
export interface RequirementCoverageSelection {
    ids: Set<string>;
    invalid: string[];
    mode: "structured" | "unscoped" | "all";
}
/**
 * 按需求功能表的声明式「影响面」选择本层应承载的 REQ。
 * 没有影响面列时保守要求全量覆盖；一旦存在该列，空值或未知 token 会 fail-closed，避免静默漏追溯。
 */
export declare function selectRequirementIds(requirementContent: string, allIds: Set<string>, dimension: RequirementDimension): RequirementCoverageSelection;