feat(parent,auth,onboarding,files,notifications,adaptive-practice,ai): add module updates

parent:

- Add parent-student-attendance-detail component

auth:

- Add actions, data-access, schema, services, types

onboarding:

- Add parent-children-form and hooks directory

files:

- Add actions, schema, hooks directory

notifications:

- Add schema and schema test

adaptive-practice:

- Add answer-input, answer-result, practice-result-view, practice-starter-with-nav

- Add question-card, question-content, lib and services directories

ai:

- Add context/create-ai-client-service, hooks/use-drag-position, hooks/use-position-persistence

src/modules/parent/data-access.ts

@@ -11,10 +11,10 @@ import {
   getStudentSchedule,
 } from "@/modules/classes/data-access"
 import {
-  getStudentDashboardGrades,
   getStudentHomeworkAssignments,
   getStudentExamResults,
-} from "@/modules/homework/data-access"
+} from "@/modules/homework/data-access-student"
+import { getStudentDashboardGrades } from "@/modules/homework/stats-service"
 import { getStudentGradeSummary } from "@/modules/grades/data-access"
 import { getGradeNameById } from "@/modules/school/data-access"
 import { getUserBasicInfo, getUserNamesByIds } from "@/modules/users/data-access"
@@ -283,3 +283,22 @@ export const getParentIdsByStudentIds = cache(
     return Array.from(new Set(rows.map((r) => r.parentId)))
   },
 )
+
+/**
+ * L-2: 批量查询学生→家长映射（保留关联关系）。
+ * 用于考勤通知等需要按家长-学生分组发送的场景，避免 N+1 查询。
+ * 返回数组形如 [{ parentId, studentId }]，同一家长多个学生会出现多条。
+ */
+export const getParentStudentMapByStudentIds = cache(
+  async (studentIds: string[]): Promise<Array<{ parentId: string; studentId: string }>> => {
+    if (studentIds.length === 0) return []
+    const rows = await db
+      .select({
+        parentId: parentStudentRelations.parentId,
+        studentId: parentStudentRelations.studentId,
+      })
+      .from(parentStudentRelations)
+      .where(inArray(parentStudentRelations.studentId, studentIds))
+    return rows.map((r) => ({ parentId: r.parentId, studentId: r.studentId }))
+  },
+)