Method getScrollbackLine

lib/terminal.ts:1126–1129

* Get a line from native WASM scrollback buffer * Implements IScrollbackProvider

(offset: number)

   * Implements IScrollbackProvider
   */
  public getScrollbackLine(offset: number): GhosttyCell[] | null {
    if (!this.wasmTerm) return null;
    return this.wasmTerm.getScrollbackLine(offset);
  }

  /**
   * Get scrollback length from native WASM