docs(tui): refresh stale comments for the input-required strip

The collapse-order comment still called worker_wait the last optional cut after input_required followed it, and the chrome compose-key comment claimed an exhaustive input list that omitted the strip text it now composes.

Author: bwachman

src/tui/geometry/zones.ts

@@ -242,8 +242,9 @@ export const COLLAPSE_ORDER = [
   // banner and strip.
   "pending",
   // A parked worker is standing state the operator cannot see anywhere else
-  // once the wake turn scrolls away, so its single row is the last optional
-  // cut, just ahead of prompt growth reclaim.
+  // once the wake turn scrolls away, so its single row is one of the last
+  // optional cuts, just ahead of prompt growth reclaim. The input-required
+  // strip below it is newer chrome, so it is the very last optional cut.
   "worker_wait",
   "input_required",
   // prompt growth reclaimed next (handled specially; never below PROMPT_BASE_ROWS)

src/tui/shell/chrome.ts

@@ -298,6 +298,8 @@ function operatorInputRequiredChunks(
  * - landing suggestions: whether the prompt has text
  * - WORKER WAITING strip: its composed text at the current width (folds in
  *   the selected identity, its preview, and the additional count)
+ * - INPUT REQUIRED strip: its composed text at the current width (folds in
+ *   the selected question preview and the additional count)
  *
  * Landing and zone paints read their own state and do not pass through here.
  */