Describe VITE_DEFAULT_NOTIFY_API_SERVER / DEFAULT_NOTIFY_API_SERVER,
the debug-override resolution order, and replace outdated APP_SERVER
assumptions in build and notification testing docs.
Add doc/notification-debug-panel.md as the canonical panel reference.
Update ngrok guides, README, and analysis doc to describe independent
Backend URL, Test Mode, and Skip JWT Authentication settings, including
recommended configs for hosted test servers vs local ngrok.
Reorder first-time setup so Capacitor/Xcode workspace generation (section 4)
precedes Firebase and APNs steps that require Xcode. Update cross-links and
skip targets; no change to Firebase/APNs technical instructions.
Document first-time FCM/APNs configuration (project, plist, .p8 key,
Admin credentials, Xcode capabilities) before the iOS build step, and
renumber later sections so the checklist references the new flow.
Consolidate first-run backend setup in section 1 and reframe section 2
as verification only, so local iPhone testing does not look like two
separate startup steps.