export type SqlValue = string | number | null | Uint8Array; export interface QueryExecResult { columns: Array<string>; values: Array<Array<SqlValue>>; } export interface DatabaseService { initialize(): Promise<void>; query(sql: string, params?: unknown[]): Promise<QueryExecResult[]>; run( sql: string, params?: unknown[], ): Promise<{ changes: number; lastId?: number }>; }