Status bar: the Orin at a glance over every view, like a phone's

Link on the left (with the menu on the Dash), then hot temperature, CAN, OBD while
connected, GNSS fix and satellites, LTE, WiFi, UPS, and the dark/bright button. The
Dash's own top line is gone into it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/shell.dart

@@ -20,6 +20,7 @@ import 'shell_scope.dart';
 import 'theme/palette.dart';
 import 'widgets/link_status.dart';
 import 'widgets/mock_banner.dart';
+import 'widgets/status_bar.dart';
 
 class AppShell extends StatefulWidget {
   const AppShell({
@@ -53,7 +54,7 @@ class _AppShellState extends State<AppShell> {
   Widget _page(ShellView v) {
     final b = widget.boundary;
     return switch (v) {
-      ShellView.dash => DashPage(boundary: b, themes: widget.themes),
+      ShellView.dash => DashPage(boundary: b),
       ShellView.signals => SignalsPage(boundary: b, usb: widget.usb),
       ShellView.captures => Navigator(
         key: _captures,
@@ -113,14 +114,30 @@ class _AppShellState extends State<AppShell> {
                 },
               ),
               body: ListenableBuilder(
-                listenable: widget.boundary,
+                listenable: Listenable.merge([widget.boundary, widget.themes]),
                 builder: (context, child) => Column(
                   crossAxisAlignment: CrossAxisAlignment.stretch,
                   children: [
-                    if (widget.boundary.mock)
-                      const SafeArea(bottom: false, child: MockBanner()),
-                    // Pages draw their own top (app bars); keep every bottom clear of the system bar.
-                    Expanded(child: SafeArea(top: false, child: child!)),
+                    // The Orin's status over every view; the Dash, with no app bar, gets the menu in it.
+                    SafeArea(
+                      bottom: false,
+                      child: StatusBar(
+                        boundary: widget.boundary,
+                        themes: widget.themes,
+                        leading: current == ShellView.dash
+                            ? MenuButton(color: AppTheme.of(context).subdued)
+                            : null,
+                      ),
+                    ),
+                    if (widget.boundary.mock) const MockBanner(),
+                    // The status bar took the top inset; keep every bottom clear of the system bar.
+                    Expanded(
+                      child: MediaQuery.removePadding(
+                        context: context,
+                        removeTop: true,
+                        child: SafeArea(top: false, child: child!),
+                      ),
+                    ),
                   ],
                 ),
                 child: IndexedStack(