Bug修复和功能增加

1.修复了自慰日历显示不准的Bug。
2.增加了记录当中的暂停功能，现在你可以进行寸止挑战了。

src/components/RecordForm.tsx

@@ -18,26 +18,32 @@ import TimerIcon from '@mui/icons-material/Timer';
 export const RecordForm = () => {
     // 记录状态：是否正在记录中
     const [isRecording, setIsRecording] = useState(false);
+    // 是否暂停中
+    const [isPaused, setIsPaused] = useState(false);
     // 开始时间
     const [startTime, setStartTime] = useState<Date | null>(null);
     // 已经过的时间（秒）
     const [elapsedTime, setElapsedTime] = useState(0);
+    // 暂停时累计的时间（毫秒）
+    const [accumulatedTime, setAccumulatedTime] = useState(0);
+    // 上次暂停的时间
+    const [lastPauseTime, setLastPauseTime] = useState<Date | null>(null);
     // 备注信息
     const [notes, setNotes] = useState('');
 
     // 计时器效果：每秒更新已经过的时间
     useEffect(() => {
         let intervalId: number;
-        if (isRecording && startTime) {
+        if (isRecording && startTime && !isPaused) {
             intervalId = window.setInterval(() => {
                 const now = new Date();
-                const elapsed = Math.floor((now.getTime() - startTime.getTime()) / 1000);
+                const elapsed = Math.floor((now.getTime() - startTime.getTime() - accumulatedTime) / 1000);
                 setElapsedTime(elapsed);
             }, 1000);
         }
         // 清理定时器
         return () => clearInterval(intervalId);
-    }, [isRecording, startTime]);
+    }, [isRecording, startTime, isPaused, accumulatedTime]);
 
     /**
      * 处理开始/停止按钮点击
@@ -49,12 +55,17 @@ export const RecordForm = () => {
             // 开始记录
             setStartTime(new Date());
             setIsRecording(true);
+            setIsPaused(false);
+            setAccumulatedTime(0);
+            setLastPauseTime(null);
         } else {
             // 停止记录
             setIsRecording(false);
+            setIsPaused(false);
             if (startTime) {
                 const endTime = new Date();
-                const durationInMinutes = (endTime.getTime() - startTime.getTime()) / (1000 * 60);
+                const totalPausedTime = accumulatedTime + (lastPauseTime ? endTime.getTime() - lastPauseTime.getTime() : 0);
+                const durationInMinutes = (endTime.getTime() - startTime.getTime() - totalPausedTime) / (1000 * 60);
                 
                 // 创建记录对象
                 const record = {
@@ -68,6 +79,8 @@ export const RecordForm = () => {
                 StorageService.saveRecord(record);
                 setStartTime(null);
                 setElapsedTime(0);
+                setAccumulatedTime(0);
+                setLastPauseTime(null);
                 setNotes('');
 
                 // 触发自定义事件通知数据更新
@@ -77,6 +90,27 @@ export const RecordForm = () => {
         }
     };
 
+    /**
+     * 处理暂停/继续按钮点击
+     */
+    const handlePause = () => {
+        if (!isRecording) return;
+        
+        if (!isPaused) {
+            // 暂停计时
+            setIsPaused(true);
+            setLastPauseTime(new Date());
+        } else {
+            // 继续计时
+            setIsPaused(false);
+            if (lastPauseTime) {
+                const now = new Date();
+                setAccumulatedTime(prev => prev + (now.getTime() - lastPauseTime.getTime()));
+                setLastPauseTime(null);
+            }
+        }
+    };
+
     /**
      * 格式化时间显示
      * @param seconds 秒数
@@ -166,6 +200,7 @@ export const RecordForm = () => {
                     <Typography variant="h4" color="text.secondary" sx={{ mb: 2 }}>
                         {isRecording ? formatTime(elapsedTime) : '准备开始'}
                     </Typography>
+                    <Stack direction="row" spacing={2}>
                         <Button
                             variant="contained"
                             size="large"
@@ -176,6 +211,19 @@ export const RecordForm = () => {
                         >
                             {isRecording ? '结束' : '开始'}
                         </Button>
+                        {isRecording && (
+                            <Button
+                                variant="contained"
+                                size="large"
+                                onClick={handlePause}
+                                startIcon={isPaused ? <PlayArrowIcon /> : <TimerIcon />}
+                                color="warning"
+                                sx={{ borderRadius: 28, px: 4, py: 1.5 }}
+                            >
+                                {isPaused ? '继续' : '暂停'}
+                            </Button>
+                        )}
+                    </Stack>
                 </Box>
 
                 <TextField

src/components/StatsChart.tsx

@@ -96,10 +96,11 @@ export const StatsChart = () => {
             const recordDate = new Date(record.startTime);
             if (recordDate >= startDate) {
                 const daysSince = Math.floor((now.getTime() - recordDate.getTime()) / (1000 * 60 * 60 * 24));
-                const weekIndex = Math.floor(daysSince / 7);
+                const weekIndex = WEEKS_TO_SHOW - 1 - Math.floor(daysSince / 7);
-                let dayIndex = recordDate.getDay() - 1;
+                let dayIndex = recordDate.getDay();
-                if (dayIndex === -1) dayIndex = 6; // 将周日从0改为6
+                if (dayIndex === 0) dayIndex = 6; // 将周日从0改为6
-                if (weekIndex < WEEKS_TO_SHOW) {
+                else dayIndex -= 1; // 其他日期减1，使周一为0
+                if (weekIndex >= 0 && weekIndex < WEEKS_TO_SHOW) {
                     contributionData[weekIndex][dayIndex]++;
                 }
             }