feat(parent): add attention banner, export button, and grade detail

- Add parent-attention-banner for highlighting items needing attention

- Add parent-export-button for data export capability

- Add child-grade-detail component for detailed grade viewing

- Update existing child-card, child-detail-header, child-grade-summary, child-schedule-card

- Update parent-children-data-page and data-access

src/modules/parent/components/child-schedule-card.tsx

@@ -3,22 +3,97 @@ import { CalendarDays, CalendarX } from "lucide-react"
 import { ScheduleList } from "@/shared/components/schedule/schedule-list"
 import { Card, CardContent, CardHeader, CardTitle } from "@/shared/components/ui/card"
 import { EmptyState } from "@/shared/components/ui/empty-state"
-import type { ChildScheduleItem } from "@/modules/parent/types"
+import { cn } from "@/shared/lib/utils"
+import type { ChildScheduleItem, ChildWeeklyScheduleItem } from "@/modules/parent/types"
+
+const WEEKDAY_LABELS = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"] as const
+
+const toWeekdayIndex = (w: 1 | 2 | 3 | 4 | 5 | 6 | 7): 0 | 1 | 2 | 3 | 4 | 5 | 6 =>
+  (w - 1) as 0 | 1 | 2 | 3 | 4 | 5 | 6
+
+const isToday = (w: 1 | 2 | 3 | 4 | 5 | 6 | 7): boolean => {
+  const today = new Date().getDay()
+  const normalizedToday = today === 0 ? 7 : today
+  return w === normalizedToday
+}
 
 export function ChildScheduleCard({
   items,
   childName,
+  weeklyItems,
 }: {
   items: ChildScheduleItem[]
   childName: string
+  /** 完整周课表（可选）。提供时切换为周课表视图。 */
+  weeklyItems?: ChildWeeklyScheduleItem[]
 }) {
   const hasSchedule = items.length > 0
+  const hasWeekly = weeklyItems && weeklyItems.length > 0
+
+  if (hasWeekly) {
+    const grouped: Record<number, ChildWeeklyScheduleItem[]> = {}
+    for (const item of weeklyItems!) {
+      const key = item.weekday
+      if (!grouped[key]) grouped[key] = []
+      grouped[key].push(item)
+    }
+    const weekdays = Object.keys(grouped).map(Number).sort((a, b) => a - b) as Array<1 | 2 | 3 | 4 | 5 | 6 | 7>
+
+    return (
+      <Card>
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2 text-base">
+            <CalendarDays className="h-4 w-4 text-muted-foreground" aria-hidden />
+            {childName}&apos;s Weekly Schedule
+          </CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-4">
+          {weekdays.map((w) => {
+            const dayItems = grouped[w]
+            const today = isToday(w)
+            const label = WEEKDAY_LABELS[toWeekdayIndex(w)]
+            return (
+              <div
+                key={w}
+                className={cn(
+                  "rounded-md border p-3",
+                  today && "border-primary/40 bg-primary/5",
+                )}
+              >
+                <div className="mb-2 flex items-center gap-2">
+                  <span className="text-sm font-medium">{label}</span>
+                  {today ? (
+                    <span className="rounded-full bg-primary/15 px-2 py-0.5 text-[10px] font-medium text-primary">
+                      Today
+                    </span>
+                  ) : null}
+                </div>
+                <ScheduleList
+                  items={dayItems.map((d) => ({
+                    id: d.id,
+                    classId: d.classId,
+                    className: d.className,
+                    course: d.course,
+                    startTime: d.startTime,
+                    endTime: d.endTime,
+                    location: d.location ?? null,
+                  }))}
+                  variant="separator"
+                  spacingClassName="space-y-2"
+                />
+              </div>
+            )
+          })}
+        </CardContent>
+      </Card>
+    )
+  }
 
   return (
     <Card>
       <CardHeader>
         <CardTitle className="flex items-center gap-2 text-base">
-          <CalendarDays className="h-4 w-4 text-muted-foreground" />
+          <CalendarDays className="h-4 w-4 text-muted-foreground" aria-hidden />
           {childName}&apos;s Today Schedule
         </CardTitle>
       </CardHeader>