/**
 * VectorIndex — 纯内存向量索引（适合 <10k 条目）
 * 使用余弦相似度进行最近邻搜索。
 */
export interface SearchResult {
    id: string;
    score: number;
}
export declare class VectorIndex {
    private vectors;
    addVector(id: string, vector: number[]): void;
    search(query: number[], topK: number): SearchResult[];
    remove(id: string): boolean;
    size(): number;
}
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