- desktop main.ts: the challenge IPC handler moves to
electron/challenge-window-ipc.ts (registerChallengeWindowIpc), and
resolvePortalBaseUrl moves next to the portal session that already
consumed it (portal-session.ts), so the facade ends below its main
line count; imports are sorted.
- desktop renderer: free_tier.challenge gets its own family handler
(gateway-event/free-tier.ts) in the dispatcher table instead of a
branch in handleLifecycleEvent.
- ui-tui: the challenge presenter and the existing billing step-up link
presenter move to app/gatewayBrowserLinks.ts, keeping the event
switch at or below its main size; the presenter test moves to its own
file.
No behaviour change.
69a12d2203