Add notes to finished tracks, single Nav voice, fix speed coloring

- TrackDetailSheet: + Add note button opens a dialog with text, camera,
  and gallery. Entry is saved with timestampMs=track.endMs so it lands
  inside the track's time window and appears automatically in the event
  log. logEventAdapter.update() refreshes the list after save.

- TripReportGenerator: removed NarrativeStyle enum and 4-style branch.
  generateNarrative() now emits a concise PASSAGE header (date, time
  range, duration), stats line (nm / avg kt / max kt), optional conditions
  (seas, temp), and a timestamped deck log. Fragment and layout updated to
  remove the ChipGroup style picker.

- TrackColors: replaced Expression.get("color") — which silently fails
  for lineColor on LineLayer in MapLibre Android 11.x — with
  Expression.step(Expression.get("speed"), ...) that maps the numeric
  "speed" property directly to color literals. "color" string property
  removed from speedSegments() features.

https://claude.ai/code/session_01YUbuZNDAoLea4cf9UGQ9qn

3 files changed, 102 insertions, 64 deletions

diff --git a/android-app/app/src/main/res/layout/dialog_add_track_note.xml b/android-app/app/src/main/res/layout/dialog_add_track_note.xml
new file mode 100644
index 0000000..639a27a
--- /dev/null
+++ b/android-app/app/src/main/res/layout/dialog_add_track_note.xml
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <EditText
+        android:id="@+id/et_note_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="Note"
+        android:minLines="3"
+        android:gravity="top|start"
+        android:inputType="textMultiLine"
+        android:padding="8dp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="12dp">
+
+        <Button
+            android:id="@+id/btn_note_camera"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="Camera"
+            android:layout_marginEnd="4dp" />
+
+        <Button
+            android:id="@+id/btn_note_gallery"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="Gallery"
+            android:layout_marginStart="4dp" />
+
+    </LinearLayout>
+
+    <FrameLayout
+        android:id="@+id/frame_note_photo"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
+        android:visibility="gone">
+
+        <ImageView
+            android:id="@+id/iv_note_photo"
+            android:layout_width="match_parent"
+            android:layout_height="120dp"
+            android:scaleType="centerCrop"
+            android:contentDescription="Selected photo" />
+
+        <Button
+            android:id="@+id/btn_note_remove_photo"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="top|end"
+            android:layout_margin="4dp"
+            android:text="✕"
+            android:textSize="10sp"
+            android:paddingHorizontal="6dp"
+            android:paddingVertical="2dp" />
+
+    </FrameLayout>
+
+</LinearLayout>
diff --git a/android-app/app/src/main/res/layout/fragment_trip_report.xml b/android-app/app/src/main/res/layout/fragment_trip_report.xml
index 1ce0bde..7228fa9 100644
--- a/android-app/app/src/main/res/layout/fragment_trip_report.xml
+++ b/android-app/app/src/main/res/layout/fragment_trip_report.xml
@@ -14,61 +14,10 @@
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:text="Trip Narrative"
+            android:text="Trip Report"
             android:textSize="24sp"
             android:textStyle="bold"
-            android:layout_marginBottom="16dp" />
-
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="Choose Narrative Style:"
-            android:textSize="14sp"
-            android:layout_marginBottom="8dp" />
-
-        <HorizontalScrollView
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_marginBottom="24dp">
-
-            <com.google.android.material.chip.ChipGroup
-                android:id="@+id/chip_group_styles"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:singleSelection="true"
-                app:selectionRequired="true">
-
-                <com.google.android.material.chip.Chip
-                    android:id="@+id/chip_professional"
-                    style="@style/Widget.Material3.Chip.Filter"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:text="Professional"
-                    android:checked="true" />
-
-                <com.google.android.material.chip.Chip
-                    android:id="@+id/chip_adventurous"
-                    style="@style/Widget.Material3.Chip.Filter"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:text="Adventurous" />
-
-                <com.google.android.material.chip.Chip
-                    android:id="@+id/chip_journal"
-                    style="@style/Widget.Material3.Chip.Filter"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:text="Journal" />
-
-                <com.google.android.material.chip.Chip
-                    android:id="@+id/chip_pirate"
-                    style="@style/Widget.Material3.Chip.Filter"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:text="Pirate" />
-
-            </com.google.android.material.chip.ChipGroup>
-        </HorizontalScrollView>
+            android:layout_marginBottom="24dp" />
 
         <com.google.android.material.card.MaterialCardView
             android:layout_width="match_parent"
@@ -88,8 +37,9 @@
                     android:id="@+id/tv_narrative_content"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:text="Generate a report to see your story..."
-                    android:textSize="16sp"
+                    android:text="Generate a report to see your passage summary…"
+                    android:textSize="15sp"
+                    android:fontFamily="monospace"
                     android:lineSpacingExtra="4dp" />
 
             </LinearLayout>
@@ -100,7 +50,7 @@
             android:layout_width="match_parent"
             android:layout_height="60dp"
             android:layout_marginTop="24dp"
-            android:text="REFRESH REPORT" />
+            android:text="GENERATE REPORT" />
 
         <ProgressBar
             android:id="@+id/progress_report"
diff --git a/android-app/app/src/main/res/layout/layout_track_detail_sheet.xml b/android-app/app/src/main/res/layout/layout_track_detail_sheet.xml
index 993edf8..4a77a36 100644
--- a/android-app/app/src/main/res/layout/layout_track_detail_sheet.xml
+++ b/android-app/app/src/main/res/layout/layout_track_detail_sheet.xml
@@ -97,17 +97,36 @@
         <View android:layout_width="match_parent" android:layout_height="1dp"
             android:background="?attr/colorOutlineVariant" android:layout_marginHorizontal="16dp" />
 
-        <TextView
+        <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:paddingHorizontal="20dp"
+            android:orientation="horizontal"
+            android:gravity="center_vertical"
+            android:paddingStart="20dp"
+            android:paddingEnd="8dp"
             android:paddingTop="8dp"
-            android:paddingBottom="4dp"
-            android:text="Event Log"
-            android:textSize="13sp"
-            android:textAllCaps="true"
-            android:letterSpacing="0.08"
-            android:textColor="?attr/colorOnSurfaceVariant" />
+            android:paddingBottom="4dp">
+
+            <TextView
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:text="Event Log"
+                android:textSize="13sp"
+                android:textAllCaps="true"
+                android:letterSpacing="0.08"
+                android:textColor="?attr/colorOnSurfaceVariant" />
+
+            <Button
+                android:id="@+id/btn_add_note"
+                style="?attr/borderlessButtonStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="+ Add note"
+                android:textSize="12sp"
+                android:paddingHorizontal="8dp" />
+
+        </LinearLayout>
 
         <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/rv_log_entries"