Replaces the push/pop stack rooted at Record with a StatefulShellRoute
(Map/Rides/Plan/Settings), each tab keeping its own navigator so Trip Detail
and the route planner push within their own branch. AppShell/ShellScaffold
host one shared RideMap instance behind every tab -- full opacity and
interactive on Map, dimmed and non-interactive elsewhere -- so the camera
position and live path survive a tab switch instead of being refetched.
Every tab's AppBar/header is removed per the redesign's no-chrome mandate.
Fixes a bug this surfaced: RideMap rendered a structurally different tree
for empty vs. non-empty points, which crashed once the map became a
long-lived shell background instead of a fresh per-screen widget. Unified
the background-map tree shape so it no longer remounts mid-recording.
Verified on Medium_Phone_API_35: all four tabs, live recording surviving
tab switches with the camera preserved, and the real HOME-key lifecycle
tile-drop from V3-04 still firing correctly in the shell context.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012Xki7YAcc2TiN2PRZJ2tXr
Same shape as docs/v3/: Goal/Context/Design/Implementation/Acceptance/Tests/Risks/Out-of-scope, written before implementing.
UI-01: persistent 4-tab shell (StatefulShellRoute) replacing the current push/pop stack rooted at Record, with a single shared background map dimmed behind every tab and no header anywhere.
UI-02: animated skeleton map for the no-cache/no-network case, since the map is now a permanent background presence rather than opt-in per screen.
UI-03: shared GlassPanel/FloatingPill/PulsingLocationMarker component kit.
UI-04: draggable, resizable HUD telemetry widgets with a Settings visibility toggle -- split out from the screen redesign itself since it's a genuinely separate piece of engineering (a small widget-layout system, not a reskin).
UI-05: Map HUD/Record screen redesign -- the design north star every other screen ticket restyles toward.
UI-06: Plan & Route Planning -- correct in principle, explicitly restyled toward UI-05 rather than copying the Stitch export's drifted styling.
UI-07: Rides History -- live dimmed map background (not the mockup's static image), search/filter, real per-ride map thumbnails, and real distinct summary stats (fixing the export's 4-identical-cards generation artifact).
UI-08: theme migration to Modern Professional Dark, superseding V3-16's safety-orange direction.
README documents the dependency order, and two categories worth keeping separate: what was named explicitly by the person commissioning this (map-on-every-tab, no header, offline skeleton, customizable HUD) versus what the mockups themselves got inconsistent (nav icon count, duplicate summary cards, wrong active-tab highlight) and should not be copied as intentional.
