feat(i18n): 增强生理周期模块的国际化支持，添加多语言格式和翻译

components/menstrual-cycle/MonthBlock.tsx

@@ -17,6 +17,7 @@ interface MonthBlockProps {
   selectedDateKey: string;
   onSelect: (dateKey: string) => void;
   renderTip: (colIndex: number) => React.ReactNode;
+  weekLabels?: string[];
 }
 
 export const MonthBlock: React.FC<MonthBlockProps> = ({
@@ -24,8 +25,10 @@ export const MonthBlock: React.FC<MonthBlockProps> = ({
   selectedDateKey,
   onSelect,
   renderTip,
+  weekLabels,
 }) => {
   const weeks = useMemo(() => chunkArray(month.cells, 7), [month.cells]);
+  const labels = weekLabels?.length === 7 ? weekLabels : WEEK_LABELS;
 
   return (
     <View style={styles.monthCard}>
@@ -34,7 +37,7 @@ export const MonthBlock: React.FC<MonthBlockProps> = ({
         <Text style={styles.monthSubtitle}>{month.subtitle}</Text>
       </View>
       <View style={styles.weekRow}>
-        {WEEK_LABELS.map((label) => (
+        {labels.map((label) => (
           <Text key={label} style={styles.weekLabel}>
             {label}
           </Text>