Prove the default bound is wired, and name the option on the failure a consumer reads

todo.md

@@ -190,7 +190,9 @@ the rewrite, for a dependency added later. Maintainer's call, 2026-09-14.
       `reassemblyTimeout`, `responseTimeout` and `shutdownTimeout` take any integer, and `setTimeout`
       fires after 1 ms for anything above 2147483647 — so a value in the wrong unit gets the inverse
       of what it asked for, explained only by a warning on stderr. `connectTimeout` refuses one
-      already, which is the asymmetry to close. Raised by review, 2026-09-20.
+      already, which is the asymmetry to close. The same four print an untyped value bare, so
+      `idleTimeout: '5000'` is refused with `got 5000` — a value the reader reads as correct — where
+      `connectTimeout` quotes it. Raised by review, 2026-09-20.
 
 - [ ] **A send the codec will refuse waits for a link and a window slot first.** `refuse()` in
       `outgoing-requests.ts` runs `misuse()` and the abort check before the wait, precisely so a call