fix: enhance pagination settings across multiple pages with default size and options

apps/admin/src/components/StudentProfileContent/index.tsx

@@ -321,7 +321,11 @@ const EnrollmentsTab: React.FC<TabProps & { data: EnrollmentRecord[] }> = ({
         columns={columns}
         dataSource={data}
         rowKey="id"
-        pagination={{ pageSize: 15 }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50],
+        }}
       />
       <Modal
         title="添加报读记录"
@@ -428,7 +432,11 @@ const ExamScoresTab: React.FC<TabProps & { data: ExamScoreRecord[]; enrollments:
         columns={columns}
         dataSource={data}
         rowKey="id"
-        pagination={{ pageSize: 15 }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50],
+        }}
       />
       <Modal
         title="添加考试成绩"
@@ -529,7 +537,11 @@ const LearningTab: React.FC<TabProps & { data: LearningRecord[] }> = ({ data, st
         columns={columns}
         dataSource={data}
         rowKey="id"
-        pagination={{ pageSize: 15 }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50],
+        }}
       />
       <Modal
         title="添加学情记录"
@@ -712,7 +724,11 @@ const AttachmentsTab: React.FC<TabProps & { data: AttachmentRecord[] }> = ({ dat
         columns={columns}
         dataSource={data}
         rowKey="id"
-        pagination={{ pageSize: 15 }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50],
+        }}
         style={{ marginTop: 16 }}
       />
     </div>

apps/admin/src/pages/Bills/index.tsx

@@ -399,7 +399,12 @@ const BillsPage: React.FC = () => {
         dataSource={filteredBills}
         rowKey="id"
         loading={loading}
-        pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50, 100],
+          showTotal: (total) => `共 ${total} 条`,
+        }}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
         rowSelection={{
           selectedRowKeys: selectedRows,

apps/admin/src/pages/Classes/detail.tsx

@@ -527,7 +527,11 @@ const ClassDetailPage: React.FC = () => {
                   columns={studentColumns}
                   dataSource={students}
                   rowKey="id"
-                  pagination={{ pageSize: 20 }}
+                  pagination={{
+                    defaultPageSize: 20,
+                    showSizeChanger: true,
+                    pageSizeOptions: [20, 50, 100],
+                  }}
                 />
                 <Modal
                   title="添加学员"
@@ -571,7 +575,11 @@ const ClassDetailPage: React.FC = () => {
                   columns={teacherColumns}
                   dataSource={teachers}
                   rowKey="id"
-                  pagination={{ pageSize: 20 }}
+                  pagination={{
+                    defaultPageSize: 20,
+                    showSizeChanger: true,
+                    pageSizeOptions: [20, 50, 100],
+                  }}
                 />
                 <Modal
                   title="添加教师"
@@ -630,7 +638,11 @@ const ClassDetailPage: React.FC = () => {
                   columns={scheduleColumns}
                   dataSource={schedules}
                   rowKey="id"
-                  pagination={{ pageSize: 20 }}
+                  pagination={{
+                    defaultPageSize: 20,
+                    showSizeChanger: true,
+                    pageSizeOptions: [20, 50, 100],
+                  }}
                 />
               </div>
             ),

apps/admin/src/pages/Classes/index.tsx

@@ -264,7 +264,11 @@ const ClassesPage: React.FC = () => {
         rowKey="id"
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
-        pagination={{ pageSize: 20 }}
+        pagination={{
+          defaultPageSize: 20,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+        }}
         scroll={{ x: 1100 }}
       />
 

apps/admin/src/pages/ClassroomRentals/index.tsx

@@ -436,7 +436,12 @@ const ClassroomRentalsPage: React.FC = () => {
         rowKey="id"
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
-        pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50, 100],
+          showTotal: (total) => `共 ${total} 条`,
+        }}
         scroll={{ x: 1200 }}
       />
       <Modal

apps/admin/src/pages/Classrooms/index.tsx

@@ -287,7 +287,12 @@ const ClassroomsPage: React.FC = () => {
         rowKey="id"
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
-        pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 条` }}
+        pagination={{
+          defaultPageSize: 20,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+          showTotal: (total) => `共 ${total} 条`,
+        }}
       />
       <Modal
         title={editing ? '编辑教室' : '添加教室'}

apps/admin/src/pages/Deposits/index.tsx

@@ -318,7 +318,12 @@ const DepositsPage: React.FC = () => {
     rowKey="id"
     loading={loading}
     scroll={{ x: 1200 }}
-    pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+    pagination={{
+      defaultPageSize: 15,
+      showSizeChanger: true,
+      pageSizeOptions: [15, 30, 50, 100],
+      showTotal: (total) => `共 ${total} 条`,
+    }}
     locale={{ emptyText: <Empty description="暂无数据" /> }}
   />
 

apps/admin/src/pages/Expenses/index.tsx

@@ -452,7 +452,12 @@ const ExpensesPage: React.FC = () => {
                   rowKey="id"
                   loading={loading}
                   scroll={{ x: 1200 }}
-                  pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+                  pagination={{
+                    defaultPageSize: 15,
+                    showSizeChanger: true,
+                    pageSizeOptions: [15, 30, 50, 100],
+                    showTotal: (total) => `共 ${total} 条`,
+                  }}
                   locale={{ emptyText: <Empty description="暂无数据" /> }}
                   rowSelection={{
                     selectedRowKeys: selectedRoomKeys,
@@ -575,7 +580,12 @@ const ExpensesPage: React.FC = () => {
                   rowKey="id"
                   loading={loading}
                   scroll={{ x: 1200 }}
-                  pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+                  pagination={{
+                    defaultPageSize: 15,
+                    showSizeChanger: true,
+                    pageSizeOptions: [15, 30, 50, 100],
+                    showTotal: (total) => `共 ${total} 条`,
+                  }}
                   locale={{ emptyText: <Empty description="暂无数据" /> }}
                   rowSelection={{
                     selectedRowKeys: selectedPersonalKeys,

apps/admin/src/pages/Occupancies/index.tsx

@@ -495,7 +495,12 @@ const OccupanciesPage: React.FC = () => {
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
         scroll={{ x: 1300 }}
-        pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 条` }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50, 100],
+          showTotal: (total) => `共 ${total} 条`,
+        }}
         rowSelection={rowSelection}
       />
       <Modal

apps/admin/src/pages/OperationLogs/index.tsx

@@ -26,13 +26,14 @@ const OperationLogsPage: React.FC = () => {
   const [total, setTotal] = useState(0);
   const [loading, setLoading] = useState(false);
   const [page, setPage] = useState(1);
+  const [pageSize, setPageSize] = useState(20);
   const [filterModule, setFilterModule] = useState<string | undefined>();
   const [dateRange, setDateRange] = useState<[string, string] | null>(null);
 
   const fetchData = useCallback(async () => {
     setLoading(true);
     try {
-      const params: any = { page, pageSize: 20 };
+      const params: any = { page, pageSize };
       if (filterModule) params.module = filterModule;
       if (dateRange) {
         params.startDate = dateRange[0];
@@ -46,7 +47,7 @@ const OperationLogsPage: React.FC = () => {
       message.error(err?.message || '加载失败，请稍后重试');
     }
     setLoading(false);
-  }, [page, filterModule, dateRange]);
+  }, [page, pageSize, filterModule, dateRange]);
 
   useEffect(() => {
     fetchData();
@@ -159,8 +160,13 @@ const OperationLogsPage: React.FC = () => {
         pagination={{
           current: page,
           total,
-          pageSize: 20,
+          pageSize,
-          onChange: setPage,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+          onChange: (nextPage, nextPageSize) => {
+            setPage(nextPage);
+            setPageSize(nextPageSize);
+          },
           showTotal: (t) => `共 ${t} 条`,
         }}
       />

apps/admin/src/pages/Organizations/index.tsx

@@ -235,7 +235,12 @@ const OrganizationsPage: React.FC = () => {
         loading={loading}
         locale={{ emptyText: <Empty description="暂无机构" /> }}
         scroll={{ x: 1100 }}
-        pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 个机构` }}
+        pagination={{
+          defaultPageSize: 20,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+          showTotal: (total) => `共 ${total} 个机构`,
+        }}
       />
       <Modal
         title={editing ? `编辑机构 · ${editing.name}` : '添加外部机构'}

apps/admin/src/pages/Rooms/index.tsx

@@ -519,7 +519,12 @@ const RoomsPage: React.FC = () => {
         scroll={{ x: 1200 }}
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
-        pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 间` }}
+        pagination={{
+          defaultPageSize: 20,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+          showTotal: (total) => `共 ${total} 间`,
+        }}
         rowClassName={(record) => (record.status === 'archived' ? 'archived-row' : '')}
         rowSelection={{
           selectedRowKeys,

apps/admin/src/pages/Students/index.tsx

@@ -577,7 +577,12 @@ const StudentsPage: React.FC = () => {
         loading={loading}
         locale={{ emptyText: <Empty description="暂无数据" /> }}
         scroll={{ x: 1410 }}
-        pagination={{ pageSize: 15, showTotal: (total) => `共 ${total} 人` }}
+        pagination={{
+          defaultPageSize: 15,
+          showSizeChanger: true,
+          pageSizeOptions: [15, 30, 50, 100],
+          showTotal: (total) => `共 ${total} 人`,
+        }}
         rowClassName={(record: any) => (record.status === 'archived' ? 'archived-row' : '')}
         rowSelection={{
           selectedRowKeys,

apps/admin/src/pages/TeacherWorkspace/index.tsx

@@ -146,7 +146,12 @@ const TeacherWorkspacePage: React.FC = () => {
                 columns={classColumns}
                 dataSource={data.assignedClasses}
                 rowKey="classId"
-                pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 个班级` }}
+                pagination={{
+                  defaultPageSize: 20,
+                  showSizeChanger: true,
+                  pageSizeOptions: [20, 50, 100],
+                  showTotal: (total) => `共 ${total} 个班级`,
+                }}
               />
             ) : (
               <Empty description="暂无分配的班级" />
@@ -160,7 +165,12 @@ const TeacherWorkspacePage: React.FC = () => {
                 columns={scheduleColumns}
                 dataSource={data.todaySchedules}
                 rowKey="id"
-                pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 节` }}
+                pagination={{
+                  defaultPageSize: 20,
+                  showSizeChanger: true,
+                  pageSizeOptions: [20, 50, 100],
+                  showTotal: (total) => `共 ${total} 节`,
+                }}
               />
             ) : (
               <Empty description="今日无排课" />
@@ -174,7 +184,12 @@ const TeacherWorkspacePage: React.FC = () => {
                 columns={studentColumns}
                 dataSource={data.myStudents}
                 rowKey="studentId"
-                pagination={{ pageSize: 20, showTotal: (total) => `共 ${total} 人` }}
+                pagination={{
+                  defaultPageSize: 20,
+                  showSizeChanger: true,
+                  pageSizeOptions: [20, 50, 100],
+                  showTotal: (total) => `共 ${total} 人`,
+                }}
               />
             ) : (
               <Empty description="暂无学生" />

apps/admin/src/pages/Teachers/index.tsx

@@ -46,13 +46,14 @@ const ROLE_TYPE_LABELS: Record<string, string> = {
   academic_teacher: '教务老师',
 };
 
-const PAGE_SIZE = 20;
+const DEFAULT_PAGE_SIZE = 20;
 
 const TeachersPage: React.FC = () => {
   const [data, setData] = useState<TeacherRow[]>([]);
   const [loading, setLoading] = useState(false);
   const [total, setTotal] = useState(0);
   const [page, setPage] = useState(1);
+  const [pageSize, setPageSize] = useState(DEFAULT_PAGE_SIZE);
   const [search, setSearch] = useState('');
   const [profileModal, setProfileModal] = useState<TeacherRow | null>(null);
   const [form] = Form.useForm<ProfileFormValues>();
@@ -62,7 +63,7 @@ const TeachersPage: React.FC = () => {
     setLoading(true);
     try {
       const res = await api.get<TeacherListResponse>('/rbac/teachers', {
-        params: { search: search || undefined, page, pageSize: PAGE_SIZE },
+        params: { search: search || undefined, page, pageSize },
       });
       setData(res.list);
       setTotal(res.total);
@@ -70,7 +71,7 @@ const TeachersPage: React.FC = () => {
       // silent
     }
     setLoading(false);
-  }, [page, search]);
+  }, [page, pageSize, search]);
 
   useEffect(() => {
     fetchData();
@@ -199,9 +200,14 @@ const TeachersPage: React.FC = () => {
         scroll={{ x: 1300 }}
         pagination={{
           current: page,
-          pageSize: PAGE_SIZE,
+          pageSize,
           total,
-          onChange: setPage,
+          showSizeChanger: true,
+          pageSizeOptions: [20, 50, 100],
+          onChange: (nextPage, nextPageSize) => {
+            setPage(nextPage);
+            setPageSize(nextPageSize);
+          },
           showTotal: (t) => `共 ${t} 人`,
         }}
         expandable={{