已改成“普通排课与实验学时分离”：

普通课表学时 = 总学时 − 实践学时。
自动排课、手工排课、课表发布都会阻止把实践学时重复排入。
全部为实践学时的课程应设为“非排时课程”，再由实验管理安排。
教学任务和排课页面会显示“常规 / 实践学时”。
已有教学任务即使仍保存旧周学时，排课时也会按拆分后的课程学时计算。
无需数据库迁移。

src/Jiaowu.Api/Controllers/TeachingTasksController.cs

@@ -82,6 +82,9 @@ public sealed class TeachingTasksController(
                 x.WeeklyHours,
                 x.SchedulingMode,
                 CourseTotalHours = x.Course.TotalHours,
+                CoursePracticeHours = x.Course.PracticeHours,
+                CourseRegularScheduleHours =
+                    x.Course.TotalHours - x.Course.PracticeHours,
                 x.GenerationBatchCode,
                 x.Status,
                 TeacherNames = x.Teachers
@@ -127,6 +130,10 @@ public sealed class TeachingTasksController(
                 x.EndWeek,
                 x.WeeklyHours,
                 x.SchedulingMode,
+                CourseTotalHours = x.Course!.TotalHours,
+                CoursePracticeHours = x.Course.PracticeHours,
+                CourseRegularScheduleHours =
+                    x.Course.TotalHours - x.Course.PracticeHours,
                 TeacherNames = x.Teachers
                     .OrderByDescending(item => item.IsPrimary)
                     .Select(item => item.Teacher!.Name),
@@ -163,6 +170,9 @@ public sealed class TeachingTasksController(
                 x.WeeklyHours,
                 x.SchedulingMode,
                 CourseTotalHours = x.Course.TotalHours,
+                CoursePracticeHours = x.Course.PracticeHours,
+                CourseRegularScheduleHours =
+                    x.Course.TotalHours - x.Course.PracticeHours,
                 x.GenerationBatchCode,
                 x.Status,
                 x.Notes,
@@ -423,7 +433,8 @@ public sealed class TeachingTasksController(
             course,
             request.StartWeek,
             request.EndWeek,
-            request.WeeklyHours);
+            request.WeeklyHours,
+            TeachingTaskSchedulingMode.Standard);
         if (hoursProblem is not null) return ValidationProblem(hoursProblem);
         if (course.Nature is not (CourseNature.GeneralRequired or CourseNature.GeneralElective))
             return ValidationProblem("批量合班生成仅用于公共必修课或公共选修课。");
@@ -598,7 +609,8 @@ public sealed class TeachingTasksController(
             course,
             request.StartWeek,
             request.EndWeek,
-            request.WeeklyHours);
+            request.WeeklyHours,
+            request.SchedulingMode);
         if (hoursProblem is not null) return ValidationProblem(hoursProblem);
         var collegeId = ScopedCollegeId();
         if (!await db.AcademicTerms.AnyAsync(