/**
 * renderMonospaceTable — generic fixed-width plain-text table builder.
 *
 * Produces a string suitable for placement inside a fenced code block
 * (must_render_verbatim). The renderer does NOT use markdown table
 * syntax because proportional fonts in IDE chat panels destroy alignment
 * of markdown tables; this uses space-padded ASCII that stays correct in
 * any monospace context.
 *
 * Layout:
 *   [title line]
 *   HEADER ROW (left/right-padded per column)
 *   DIVIDER ROW (─ repeated per column width)
 *   DATA ROWS
 *   [footer line]
 *
 * All widths are auto-computed from max(header.length, max(cell.length))
 * then optionally capped at max_width. Columns are separated by "  "
 * (two spaces).
 */
export interface Column<Row> {
    /** Column header text. */
    header: string;
    /** Cell alignment. */
    align: 'left' | 'right';
    /** Extract the cell value from a row as a string. */
    get: (row: Row) => string;
    /** Optional width cap. Cells longer than this are truncated with …. */
    max_width?: number;
}
export interface RenderTableOpts {
    title?: string;
    footer?: string;
    /** Column separator. Defaults to "  " (two spaces). */
    separator?: string;
}
/**
 * Render a plain-text monospace table from a row array and column descriptors.
 *
 * @param rows    - Data rows to render.
 * @param columns - Column descriptors (order matches rendered order).
 * @param opts    - Optional title / footer / separator.
 * @returns       Multi-line string. Caller places it inside a fenced code block.
 */
export declare function renderMonospaceTable<Row>(rows: Row[], columns: Column<Row>[], opts?: RenderTableOpts): string;