fix: address the release-prep review of #699

terminal-ui.js: the _maybePageCliTranscript JSDoc names PAGE_KEY_NOTCH_DEBT_MS as the stretched gap after a notch-sized opener
terminal-scroll-routing.test.ts: the notch-opener test comment uses the real numbers (36 rows, 14 rows owed)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

test/terminal-scroll-routing.test.ts

@@ -695,8 +695,9 @@ describe('pageKeysForGesture, the pure gesture rules both panes share', () => {
   });
 
   it('pages a notch-sized opening event at once, and the notches after it repay it', () => {
-    // Five 4-row notches 400 ms apart: the first pays the page, the next four (16 of the 15 rows
-    // owed on 38 rows) repay it, and none of them pages again.
+    // Five 4-row notches 400 ms apart: the first pays the page, the next four (16 rows of travel
+    // against the 14 owed on 36 rows, half a screen less the opener's 4) repay it, and none of them
+    // pages again.
     const steps = run([
       [-4, 0],
       [-4, 400],