refactor(ui-native): d3roNativePalette amber->main 개명 (WS-NATIVE)

- packages/ui-native theme.ts accent: amber->main, amberDim->dim, amberGlow->glow (값 보존)
- apps/mobile 20건 + apps/mobile-rn 18건 + ui-native 컴포넌트 9건 = 47 참조 치환
SKIP: Led/PhosphorText/Header color prop 'amber'(의미론적 컴포넌트 API, 별도 마이그레이션)
       green/greenGlow 키(amber계 범위外)
정책: docs/REFACTOR_POLICY.md DP1, 이식 인사이트 P7

apps/mobile/app/(tabs)/history.tsx

@@ -70,7 +70,7 @@ export default function HistoryScreen(): React.ReactElement {
   if (loading) {
     return (
       <View style={styles.center}>
-        <ActivityIndicator size="large" color={d3roNativePalette.accent.amber} />
+        <ActivityIndicator size="large" color={d3roNativePalette.accent.main} />
       </View>
     )
   }
@@ -110,7 +110,7 @@ export default function HistoryScreen(): React.ReactElement {
           <RefreshControl
             refreshing={refreshing}
             onRefresh={() => { setRefreshing(true); void load() }}
-            tintColor={d3roNativePalette.accent.amber}
+            tintColor={d3roNativePalette.accent.main}
           />
         }
         ListEmptyComponent={
@@ -247,7 +247,7 @@ const styles = StyleSheet.create({
   cardHeaderLeft: { flexDirection: 'row', alignItems: 'center' },
   timeLabel: { marginLeft: 8 },
   wordBadge: {
-    backgroundColor: d3roNativePalette.accent.amberDim,
+    backgroundColor: d3roNativePalette.accent.dim,
     paddingHorizontal: 8,
     paddingVertical: 2,
     borderRadius: 4