fix(date-picker): 优化日期选择禁用逻辑与重渲染

- 修改 disabledDate 函数，支持基于已选开始或结束时间的前后一年范围限制
- 增加对未选择时间范围时默认不禁用日期的判断
- 新增 watch 监听 exportForm.dateRange，强制触发日期选择器重新渲染
- 通过修改日期选择器 DOM 元素的 key 值实现强制刷新
- 确保日期选择禁用逻辑和视图状态同步更新

web/main.js

@@ -194,11 +194,34 @@ const app = createApp({
      * @returns {boolean} 是否禁用
      */
     const disabledDate = (date) => {
-      if (!date) return false;
-      const today = new Date();
-      const oneYearAgo = new Date(today.getFullYear() - 1, today.getMonth(), today.getDate());
-      const oneYearLater = new Date(today.getFullYear() + 1, today.getMonth(), today.getDate());
-      return date < oneYearAgo || date > oneYearLater;
+      if (!date || !state.exportForm.dateRange) return false;
+      
+      // 如果已经选择了开始时间，计算结束时间限制
+      if (state.exportForm.dateRange[0]) {
+        const startTime = new Date(state.exportForm.dateRange[0]);
+        const oneYearLater = new Date(startTime);
+        oneYearLater.setFullYear(startTime.getFullYear() + 1);
+        
+        const oneYearEarlier = new Date(startTime);
+        oneYearEarlier.setFullYear(startTime.getFullYear() - 1);
+        
+        return date < oneYearEarlier || date > oneYearLater;
+      }
+      
+      // 如果已经选择了结束时间，计算开始时间限制
+      if (state.exportForm.dateRange[1]) {
+        const endTime = new Date(state.exportForm.dateRange[1]);
+        const oneYearLater = new Date(endTime);
+        oneYearLater.setFullYear(endTime.getFullYear() + 1);
+        
+        const oneYearEarlier = new Date(endTime);
+        oneYearEarlier.setFullYear(endTime.getFullYear() - 1);
+        
+        return date < oneYearEarlier || date > oneYearLater;
+      }
+      
+      // 默认情况下不禁用任何日期
+      return false;
     };
 
     const dateShortcuts = [
@@ -954,6 +977,18 @@ const app = createApp({
       loadResellers();
     });
 
+    // 时间范围变化时强制重新渲染日期选择器
+    Vue.watch(() => state.exportForm.dateRange, () => {
+      // 触发日期选择器重新计算禁用状态
+      if (exportFormRef.value) {
+        // 通过修改 key 强制组件重新渲染
+        const datePicker = exportFormRef.value.$el.querySelector('.el-date-editor');
+        if (datePicker) {
+          datePicker.key = Date.now();
+        }
+      }
+    }, { deep: true });
+
     Vue.watch(() => state.exportForm.ymtCreatorId, () => {
       state.exportForm.ymtMerchantId = null;
       state.exportForm.ymtActivityId = null;