教学点名：教学班、考勤表均改为服务端分页；支持课程/任务关键词、学期、考勤表名称/备注、状态、签到方式筛选。

成绩管理：确认原本已是服务端分页，且已有学期、状态、课程关键词与学生关键词筛选，无需重复改造。
新增服务端分页与筛选测试。

src/Jiaowu.Api/Controllers/AttendanceController.cs

@@ -3,6 +3,7 @@ using System.Security.Claims;
 using System.Security.Cryptography;
 using System.Text;
 using ClosedXML.Excel;
+using Jiaowu.Api.Contracts;
 using Jiaowu.Api.Domain.Academic;
 using Jiaowu.Api.Domain.Identity;
 using Jiaowu.Api.Infrastructure.Auth;
@@ -33,14 +34,32 @@ public sealed class AttendanceController(
     [Authorize(Roles = AttendanceRoles)]
     public async Task<ActionResult> GetMyTasks(
         Guid? academicTermId,
-        CancellationToken cancellationToken)
+        string? keyword = null,
+        int page = 1,
+        int pageSize = 20,
+        CancellationToken cancellationToken = default)
     {
+        page = Math.Max(1, page);
+        pageSize = Math.Clamp(pageSize, 10, 50);
         var tasks = AccessibleTasks().AsNoTracking()
             .Where(x => x.Status == TeachingTaskStatus.Published);
         if (academicTermId.HasValue)
             tasks = tasks.Where(x => x.AcademicTermId == academicTermId);
+        if (!string.IsNullOrWhiteSpace(keyword))
+        {
+            keyword = keyword.Trim();
+            tasks = tasks.Where(x =>
+                x.TaskNumber.Contains(keyword) ||
+                x.Name.Contains(keyword) ||
+                x.Course!.Code.Contains(keyword) ||
+                x.Course.Name.Contains(keyword));
+        }
+        var total = await tasks.CountAsync(cancellationToken);
         var result = await tasks
             .OrderBy(x => x.Course!.Code)
+            .ThenBy(x => x.TaskNumber)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
             .Select(x => new
             {
                 x.Id,
@@ -63,22 +82,44 @@ public sealed class AttendanceController(
                     sheet.TeachingTaskId == x.Id)
             })
             .ToListAsync(cancellationToken);
-        return Ok(result);
+        return Ok(new PagedResult<object>(result, total, page, pageSize));
     }
 
     [HttpGet("sheets")]
     [Authorize(Roles = AttendanceRoles)]
     public async Task<ActionResult> GetSheets(
         Guid teachingTaskId,
-        CancellationToken cancellationToken)
+        string? keyword = null,
+        AttendanceSheetStatus? status = null,
+        AttendanceCheckInMethod? checkInMethod = null,
+        int page = 1,
+        int pageSize = 20,
+        CancellationToken cancellationToken = default)
     {
+        page = Math.Max(1, page);
+        pageSize = Math.Clamp(pageSize, 10, 50);
         var task = await AccessibleTasks().AsNoTracking()
             .FirstOrDefaultAsync(x => x.Id == teachingTaskId, cancellationToken);
         if (task is null) return NotFound();
 
-        var sheets = await db.AttendanceSheets.AsNoTracking()
-            .Where(x => x.TeachingTaskId == teachingTaskId)
+        var source = db.AttendanceSheets.AsNoTracking()
+            .Where(x => x.TeachingTaskId == teachingTaskId);
+        if (!string.IsNullOrWhiteSpace(keyword))
+        {
+            keyword = keyword.Trim();
+            source = source.Where(x => x.Name.Contains(keyword) || x.Notes!.Contains(keyword));
+        }
+        if (status.HasValue)
+            source = source.Where(x => x.Status == status.Value);
+        if (checkInMethod.HasValue)
+            source = source.Where(x => x.CheckInMethod == checkInMethod.Value);
+
+        var total = await source.CountAsync(cancellationToken);
+        var sheets = await source
             .OrderByDescending(x => x.AttendanceDate)
+            .ThenByDescending(x => x.Id)
+            .Skip((page - 1) * pageSize)
+            .Take(pageSize)
             .Select(x => new
             {
                 x.Id,
@@ -99,7 +140,7 @@ public sealed class AttendanceController(
                 TotalCount = x.Records.Count
             })
             .ToListAsync(cancellationToken);
-        return Ok(sheets);
+        return Ok(new PagedResult<object>(sheets, total, page, pageSize));
     }
 
     [HttpPost("sheets")]

src/Jiaowu.Api/Infrastructure/Analytics/ClickHouseAnalyticsProjectionWorker.cs

@@ -90,7 +90,7 @@ public sealed class ClickHouseAnalyticsProjectionWorker(
                     (x.AttendanceSheetId.CompareTo(cursorSheetId) > 0 ||
                      x.AttendanceSheetId == cursorSheetId && x.StudentId.CompareTo(cursorStudentId) > 0))
                 .OrderBy(x => x.AttendanceSheet!.AttendanceDate).ThenBy(x => x.AttendanceSheetId).ThenBy(x => x.StudentId).Take(options.BatchSize)
-                .Select(x => new { x.AttendanceSheetId, x.StudentId, AttendanceDate = x.AttendanceSheet!.AttendanceDate, TeachingTaskId = x.AttendanceSheet.TeachingTaskId, AcademicTermId = x.AttendanceSheet.TeachingTask!.AcademicTermId, CollegeId = x.AttendanceSheet.TeachingTask.Course!.CollegeId, Status = (byte)x.Status, x.CheckInAt, CheckedInMethod = x.CheckedInMethod == null ? null : (byte?)x.CheckedInMethod, AppealStatus = (byte)x.AppealStatus, ProjectedAt = projectedAt })
+                .Select(x => new { x.AttendanceSheetId, x.StudentId, AttendanceDate = x.AttendanceSheet!.AttendanceDate, TeachingTaskId = x.AttendanceSheet.TeachingTaskId, AcademicTermId = x.AttendanceSheet.TeachingTask!.AcademicTermId, CollegeId = x.AttendanceSheet.TeachingTask.Course!.CollegeId, x.Status, x.CheckInAt, x.CheckedInMethod, x.AppealStatus, ProjectedAt = projectedAt })
                 .ToListAsync(cancellationToken);
             if (rows.Count == 0) return count;
             await client.InsertAsync("attendanceRecords", rows, cancellationToken);