fix: WaitTx timeout no longer overwrites a rendered success screen (closes #155)

TODO.md

@@ -44,6 +44,12 @@ undefined identifiers, which is how
 
 # Completed Steps
 
+- 2026-08-12: WaitTx lifecycle: a receipt and the 60-second timeout can no
+  longer both render on one tick, no timer or in-flight lookup outlives its
+  wait, a failed receipt lookup no longer counts as a timeout (but six in a row
+  end the wait, reported as an unreachable network rather than as a timeout),
+  and the wait now resumes after a popup close
+  ([#155](https://git.eeqj.de/sneak/AutistMask/issues/155)).
 - 2026-08-12: The private key export screen now wipes the key from the page
   whenever it is left by any route, and a decrypt still in flight when the
   screen is left is discarded instead of written; the same `onViewLeave()`