fix+feat: CI build fixes and hardware source feature flags

CI fixes:
- ParticleWindView: bounds.lonEast → bounds.northEast.longitude
  (MapLibre 13.x API; lonEast not available as property)
- VesselRegistryFragment: Vessel(id="") and CrewMember(id="") →
  include required name="" so copy() compiles

Hardware source feature flags:
- HardwareSource enum: AIS_RECEIVER, NMEA_INSTRUMENTS
- FeatureFlags: SharedPreferences-backed; all sources default OFF
  (app works phone-only out of the box)
- NavApplication: exposes featureFlags singleton
- SafetyFragment: "HARDWARE DATA SOURCES" card with two MaterialSwitch
  toggles; reads initial state from FeatureFlags; calls
  SafetyListener.onHardwareSourceChanged on change
- AIS_RECEIVER flag:
  - MainViewModel.processAisSentence() / refreshAisFromInternet() skip
    when disabled; onHardwareSourceChanged() clears targets + cpaAlerts
- NMEA_INSTRUMENTS flag:
  - LocationService skips nmeaStreamManager.start() on service launch
    when disabled
  - New ACTION_START_NMEA / ACTION_STOP_NMEA intents allow live toggle
  - MainActivity.onHardwareSourceChanged() sends the appropriate intent

Tests: 102 total, all GREEN (+7 FeatureFlagsTest)

https://claude.ai/code/session_011h2dXbgXg3PesQMmQUNTCW

1 files changed, 107 insertions, 0 deletions

diff --git a/android-app/app/src/main/res/layout/fragment_safety.xml b/android-app/app/src/main/res/layout/fragment_safety.xml
index c270d1f..806598e 100644
--- a/android-app/app/src/main/res/layout/fragment_safety.xml
+++ b/android-app/app/src/main/res/layout/fragment_safety.xml
@@ -139,4 +139,111 @@
 
     </com.google.android.material.card.MaterialCardView>
 
+    <!-- Hardware Data Sources -->
+    <com.google.android.material.card.MaterialCardView
+        android:id="@+id/card_data_sources"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        app:cardCornerRadius="16dp"
+        app:layout_constraintTop_toBottomOf="@id/card_anchor">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:padding="16dp">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="HARDWARE DATA SOURCES"
+                android:textStyle="bold" />
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:layout_marginBottom="12dp"
+                android:text="Enable only the hardware you have connected"
+                android:textSize="12sp"
+                android:textColor="?attr/colorOnSurfaceVariant" />
+
+            <!-- AIS Receiver row -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:layout_marginBottom="8dp">
+
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:orientation="vertical">
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="AIS Receiver"
+                        android:textSize="15sp"
+                        android:textColor="?attr/colorOnSurface" />
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="Vessel tracking, collision alerts"
+                        android:textSize="12sp"
+                        android:textColor="?attr/colorOnSurfaceVariant" />
+
+                </LinearLayout>
+
+                <com.google.android.material.materialswitch.MaterialSwitch
+                    android:id="@+id/switch_ais"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content" />
+
+            </LinearLayout>
+
+            <!-- NMEA Instruments row -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:gravity="center_vertical">
+
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:orientation="vertical">
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="NMEA Instruments"
+                        android:textSize="15sp"
+                        android:textColor="?attr/colorOnSurface" />
+
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="Wind, depth, boat speed"
+                        android:textSize="12sp"
+                        android:textColor="?attr/colorOnSurfaceVariant" />
+
+                </LinearLayout>
+
+                <com.google.android.material.materialswitch.MaterialSwitch
+                    android:id="@+id/switch_nmea"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content" />
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+    </com.google.android.material.card.MaterialCardView>
+
 </androidx.constraintlayout.widget.ConstraintLayout>