feat: configurable map orientation (Settings > App)

Three modes selectable from Settings > App > Map orientation:
- North up: map always points north (MapLibre 'default')
- Compass: rotates with device compass heading ('heading')
- Course up: rotates to direction of travel ('course')

Default is North up. Setting persisted in AsyncStorage via ThemeContext.

src/ThemeContext.tsx

@@ -2,59 +2,63 @@ import React, { createContext, useContext, useEffect, useState } from 'react';
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { PALETTES, FONT_SCALE, type PaletteKey, type FontSizeKey } from './theme';
 
+export type MapOrientation = 'north' | 'compass' | 'course';
+
 interface ThemeValue {
-  accent:        string;
-  accentDim:     string;
-  palette:       PaletteKey;
-  setPalette:    (p: PaletteKey) => void;
-  fontSize:      FontSizeKey;
-  setFontSize:   (s: FontSizeKey) => void;
-  boldLabels:    boolean;
-  setBoldLabels: (b: boolean) => void;
-  scale:         number;
+  accent:           string;
+  accentDim:        string;
+  palette:          PaletteKey;
+  setPalette:       (p: PaletteKey) => void;
+  fontSize:         FontSizeKey;
+  setFontSize:      (s: FontSizeKey) => void;
+  boldLabels:       boolean;
+  setBoldLabels:    (b: boolean) => void;
+  scale:            number;
+  mapOrientation:    MapOrientation;
+  setMapOrientation: (o: MapOrientation) => void;
 }
 
+const MAP_ORIENTATIONS: MapOrientation[] = ['north', 'compass', 'course'];
+
 const ThemeContext = createContext<ThemeValue>({
   ...PALETTES.default,
-  palette:       'default',
-  setPalette:    () => {},
-  fontSize:      'medium',
-  setFontSize:   () => {},
-  boldLabels:    false,
-  setBoldLabels: () => {},
-  scale:         1,
+  palette:           'default',
+  setPalette:        () => {},
+  fontSize:          'medium',
+  setFontSize:       () => {},
+  boldLabels:        false,
+  setBoldLabels:     () => {},
+  scale:             1,
+  mapOrientation:    'north',
+  setMapOrientation: () => {},
 });
 
 export function ThemeProvider({ children }: { children: React.ReactNode }) {
-  const [palette,    setPaletteState]    = useState<PaletteKey>('default');
-  const [fontSize,   setFontSizeState]   = useState<FontSizeKey>('medium');
-  const [boldLabels, setBoldLabelsState] = useState(false);
+  const [palette,        setPaletteState]        = useState<PaletteKey>('default');
+  const [fontSize,       setFontSizeState]       = useState<FontSizeKey>('medium');
+  const [boldLabels,     setBoldLabelsState]     = useState(false);
+  const [mapOrientation, setMapOrientationState] = useState<MapOrientation>('north');
 
   useEffect(() => {
     (async () => {
-      const [p, f, b] = await Promise.all([
+      const [p, f, b, m] = await Promise.all([
         AsyncStorage.getItem('themePalette'),
         AsyncStorage.getItem('themeFontSize'),
         AsyncStorage.getItem('themeBoldLabels'),
+        AsyncStorage.getItem('mapOrientation'),
       ]);
-      if (p && p in PALETTES)    setPaletteState(p as PaletteKey);
-      if (f && f in FONT_SCALE)  setFontSizeState(f as FontSizeKey);
-      if (b !== null)            setBoldLabelsState(b === 'true');
+      if (p && p in PALETTES)             setPaletteState(p as PaletteKey);
+      if (f && f in FONT_SCALE)           setFontSizeState(f as FontSizeKey);
+      if (b !== null)                     setBoldLabelsState(b === 'true');
+      if (m && MAP_ORIENTATIONS.includes(m as MapOrientation))
+        setMapOrientationState(m as MapOrientation);
     })();
   }, []);
 
-  function setPalette(p: PaletteKey) {
-    setPaletteState(p);
-    AsyncStorage.setItem('themePalette', p);
-  }
-  function setFontSize(f: FontSizeKey) {
-    setFontSizeState(f);
-    AsyncStorage.setItem('themeFontSize', f);
-  }
-  function setBoldLabels(b: boolean) {
-    setBoldLabelsState(b);
-    AsyncStorage.setItem('themeBoldLabels', String(b));
-  }
+  function setPalette(p: PaletteKey)             { setPaletteState(p);        AsyncStorage.setItem('themePalette',    p); }
+  function setFontSize(f: FontSizeKey)           { setFontSizeState(f);       AsyncStorage.setItem('themeFontSize',   f); }
+  function setBoldLabels(b: boolean)             { setBoldLabelsState(b);     AsyncStorage.setItem('themeBoldLabels', String(b)); }
+  function setMapOrientation(o: MapOrientation)  { setMapOrientationState(o); AsyncStorage.setItem('mapOrientation',  o); }
 
   return (
     <ThemeContext.Provider value={{
@@ -64,6 +68,7 @@ export function ThemeProvider({ children }: { children: React.ReactNode }) {
       fontSize,  setFontSize,
       boldLabels, setBoldLabels,
       scale:     FONT_SCALE[fontSize],
+      mapOrientation, setMapOrientation,
     }}>
       {children}
     </ThemeContext.Provider>

src/screens/RecordingScreen.tsx

@@ -17,7 +17,12 @@ type Nav = NativeStackNavigationProp<RootStackParamList>;
 
 export function RecordingScreen() {
   const nav = useNavigation<Nav>();
-  const { accent, accentDim, scale, boldLabels } = useTheme();
+  const { accent, accentDim, scale, boldLabels, mapOrientation } = useTheme();
+
+  // Map orientation setting → MapLibre trackUserLocation value
+  const trackUserLocation = mapOrientation === 'north' ? 'default'
+    : mapOrientation === 'compass' ? 'heading'
+    : 'course';
   const { status, ble, keepAwake, trackPoints, start, pause, resume, stop, setKeepAwake, getStats } = useRecordingStore();
   const [stats, setStats] = useState(getStats());
   const intervalRef = useRef<ReturnType<typeof setInterval> | null>(null);
@@ -106,7 +111,7 @@ export function RecordingScreen() {
       <View style={styles.mapArea}>
         <Map mapStyle={MAP_STYLE} style={StyleSheet.absoluteFill} logo={false} attribution={false}>
           <Camera
-            trackUserLocation={status === 'recording' ? 'course' : 'default'}
+            trackUserLocation={trackUserLocation}
             initialViewState={{ zoom: 14 }}
           />
           <UserLocation>

src/screens/SettingsScreen.tsx

@@ -6,7 +6,7 @@ import {
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { login, logout, loadAuthState } from '../services/auth';
 import { colors, PALETTES, type PaletteKey, type FontSizeKey } from '../theme';
-import { useTheme } from '../ThemeContext';
+import { useTheme, type MapOrientation } from '../ThemeContext';
 
 type Tab = 'ui' | 'app' | 'sync';
 
@@ -93,8 +93,14 @@ function UITab() {
 
 // ─── App tab ─────────────────────────────────────────────────────────────────
 
+const MAP_ORIENTATION_OPTIONS: { key: MapOrientation; label: string; sub: string }[] = [
+  { key: 'north',   label: 'North up',   sub: 'Map always points north' },
+  { key: 'compass', label: 'Compass',    sub: 'Rotates with device heading' },
+  { key: 'course',  label: 'Course up',  sub: 'Rotates to direction of travel' },
+];
+
 function AppTab() {
-  const { accent } = useTheme();
+  const { accent, accentDim, mapOrientation, setMapOrientation } = useTheme();
   const [kmNotifications, setKmNotifications] = useState(true);
 
   useEffect(() => {
@@ -110,6 +116,24 @@ function AppTab() {
 
   return (
     <ScrollView contentContainerStyle={styles.content}>
+      <Text style={styles.sectionTitle}>Map orientation</Text>
+      {MAP_ORIENTATION_OPTIONS.map(({ key, label, sub }) => {
+        const active = mapOrientation === key;
+        return (
+          <TouchableOpacity
+            key={key}
+            style={[styles.row, active && { borderColor: accent, backgroundColor: accentDim }]}
+            onPress={() => setMapOrientation(key)}
+          >
+            <View>
+              <Text style={[styles.rowLabel, active && { color: accent }]}>{label}</Text>
+              <Text style={styles.rowSub}>{sub}</Text>
+            </View>
+            {active && <Text style={{ color: accent, fontSize: 16 }}>✓</Text>}
+          </TouchableOpacity>
+        );
+      })}
+
       <Text style={styles.sectionTitle}>Notifications</Text>
       <View style={styles.row}>
         <View>