Method typecheck

src/orchestration/qa-node.ts:37–37

* Run a typecheck over the staged files (the engine wires this to a tsc * invocation scoped to touched files, or a no-op when tsc isn't available). * Returns error strings (empty = clean).

(files: Array<{ path: string; content: string }>, signal?: AbortSignal)

   * Returns error strings (empty = clean).
   */
  typecheck?(files: Array<{ path: string; content: string }>, signal?: AbortSignal): Promise<string[]>;
  /**
   * Run the design audit over staged content. Returns issues. Wired to the
   * existing design_audit logic by the engine.