MSP protocol implementation and settings menu

app/lib/ui/widgets/bottom_stats_bar.dart

@@ -19,6 +19,7 @@ class BottomStatsBar extends ConsumerWidget {
     required this.totalDistanceM,
     required this.totalDurationSec,
     required this.onTap,
+    required this.onSettingsTap,
     this.warnings = const [],
     this.onWarningsTap,
   });
@@ -28,6 +29,10 @@ class BottomStatsBar extends ConsumerWidget {
   final double totalDurationSec;
   final VoidCallback onTap;
 
+  /// Oeffnet das Settings-Menue (runder Zahnrad-Knopf rechts der
+  /// Details-Pille).
+  final VoidCallback onSettingsTap;
+
   /// Aktive Warnungen zur Mission (Doku 3.10) - der Button erscheint nur,
   /// solange diese Liste nicht leer ist (HTML-Demonstrator: #warningsBtn,
   /// per default versteckt).
@@ -62,6 +67,7 @@ class BottomStatsBar extends ConsumerWidget {
                         label: 'Mission: $missionName',
                         color: Colors.white.withValues(alpha: 0.12),
                         textColor: Colors.white,
+                        maxWidth: 160,
                         onTap: () => Navigator.of(context).push(MaterialPageRoute(
                           builder: (_) => const MissionsDronesPanel.missions(),
                         )),
@@ -73,21 +79,32 @@ class BottomStatsBar extends ConsumerWidget {
                         label: 'Drone: $droneName',
                         color: const Color(0xFF4D9DFF).withValues(alpha: 0.18),
                         textColor: const Color(0xFFCFE2FF),
+                        maxWidth: 140,
                         onTap: () => Navigator.of(context).push(MaterialPageRoute(
                           builder: (_) => const MissionsDronesPanel.drones(),
                         )),
                       ),
                     ),
-                    if (warnings.isNotEmpty) ...[
-                      const SizedBox(width: 6),
-                      _WarningButton(onTap: onWarningsTap),
-                    ],
                   ],
                 ),
               ),
             ),
             _detailsPill(),
-            const Expanded(child: SizedBox.shrink()),
+            Expanded(
+              child: Align(
+                alignment: Alignment.centerRight,
+                child: Row(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    if (warnings.isNotEmpty) ...[
+                      _WarningButton(onTap: onWarningsTap),
+                      const SizedBox(width: 6),
+                    ],
+                    _SettingsButton(onTap: onSettingsTap),
+                  ],
+                ),
+              ),
+            ),
           ],
         ),
       ),
@@ -168,25 +185,51 @@ class _WarningButton extends StatelessWidget {
   }
 }
 
-class _NameChip extends StatelessWidget {
-  const _NameChip({
-    required this.label,
-    required this.color,
-    required this.textColor,
-    required this.onTap,
-  });
+/// Runder Zahnrad-Knopf rechts der Details-Pille - oeffnet das
+/// Settings-Menue (SettingsScreen).
+class _SettingsButton extends StatelessWidget {
+  const _SettingsButton({required this.onTap});
 
-  final String label;
-  final Color color;
-  final Color textColor;
   final VoidCallback onTap;
 
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: onTap,
+      child: Container(
+        width: 34,
+        height: 34,
+        decoration: BoxDecoration(
+          shape: BoxShape.circle,
+          color: Colors.white.withValues(alpha: 0.12),
+        ),
+        child: const Icon(Icons.settings, color: Colors.white, size: 18),
+      ),
+    );
+  }
+}
+
+class _NameChip extends StatelessWidget {
+  const _NameChip({
+    required this.label,
+    required this.color,
+    required this.textColor,
+    required this.onTap,
+    required this.maxWidth,
+  });
+
+  final String label;
+  final Color color;
+  final Color textColor;
+  final VoidCallback onTap;
+  final double maxWidth;
+
   @override
   Widget build(BuildContext context) {
     return GestureDetector(
       onTap: onTap,
       child: ConstrainedBox(
-        constraints: const BoxConstraints(maxWidth: 130),
+        constraints: BoxConstraints(maxWidth: maxWidth),
         child: Container(
           padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 7),
           decoration: BoxDecoration(