教学任务按 授课周数 × 周学时 = 课程总学时 双端校验，不匹配会显示具体差额并阻止保存；公共课批量生成同样校验。

排课约束增加课程、教师、学院、授课方式、场地要求、约束状态筛选，并支持批量修改当前筛选结果。
新增“非排时课程”授课方式：不进入自动排课
不占星期、节次和教室
不阻塞课表发布
允许正常选课
在班级课表和学生个人课表中单独展示

tests/Jiaowu.Api.Tests/AutomaticScheduleGeneratorTests.cs

@@ -27,16 +27,92 @@ public sealed class AutomaticScheduleGeneratorTests
 
         Assert.True(await db.ScheduleTimeSlots.CountAsync() == 0);
         Assert.True(await db.AutomaticScheduleJobs.CountAsync() == 0);
-        Assert.True(await db.Database
-            .SqlQueryRaw<int>(
+         Assert.True(await db.Database
+             .SqlQueryRaw<int>(
                 """
                 SELECT COUNT(*) AS "Value"
                 FROM pragma_table_info('ScheduleEntries')
                 WHERE name = 'ClassroomId' AND "notnull" = 0
                 """)
+             .AnyAsync(value => value > 0));
+        Assert.True(await db.Database
+            .SqlQueryRaw<int>(
+                """
+                SELECT COUNT(*) AS "Value"
+                FROM pragma_table_info('TeachingTasks')
+                WHERE name = 'SchedulingMode'
+                """)
             .AnyAsync(value => value > 0));
     }
 
+    [Fact]
+    public async Task Generator_skips_flexible_courses()
+    {
+        await using var connection = new SqliteConnection("Data Source=:memory:");
+        await connection.OpenAsync();
+        var options = new DbContextOptionsBuilder<AppDbContext>()
+            .UseSqlite(connection)
+            .Options;
+        await using var db = new AppDbContext(options);
+        await db.Database.EnsureCreatedAsync();
+
+        var term = new AcademicTerm
+        {
+            Code = "2026-F",
+            Name = "2026 秋季",
+            AcademicYear = "2026-2027",
+            Season = TermSeason.Autumn,
+            StartDate = new DateOnly(2026, 9, 1),
+            EndDate = new DateOnly(2027, 1, 15)
+        };
+        var college = new College { Code = "PUBLIC", Name = "公共教学部" };
+        var course = new Course
+        {
+            Code = "FLEX-01",
+            Name = "社会实践",
+            College = college,
+            Credits = 1,
+            TotalHours = 16,
+            PracticeHours = 16
+        };
+        var task = new TeachingTask
+        {
+            TaskNumber = "TASK-FLEX",
+            Name = "社会实践教学班",
+            AcademicTerm = term,
+            Course = course,
+            Capacity = 100,
+            StartWeek = 1,
+            EndWeek = 16,
+            WeeklyHours = 1,
+            SchedulingMode = TeachingTaskSchedulingMode.Flexible,
+            Status = TeachingTaskStatus.Published
+        };
+        var plan = new SchedulePlan
+        {
+            AcademicTerm = term,
+            Name = "非排时课程测试",
+            Version = "V1"
+        };
+        db.AddRange(term, college, course, task, plan);
+        db.ScheduleTimeSlots.Add(new ScheduleTimeSlot
+        {
+            AcademicTerm = term,
+            PeriodNumber = 1,
+            Name = "第 1 节",
+            StartsAt = new TimeOnly(8, 0),
+            EndsAt = new TimeOnly(8, 45)
+        });
+        await db.SaveChangesAsync();
+
+        var result = await new AutomaticScheduleGenerator(db)
+            .GenerateAsync(plan, CancellationToken.None);
+
+        Assert.Equal(0, result.TotalTasks);
+        Assert.Equal(0, result.CreatedEntries);
+        Assert.Empty(await db.ScheduleEntries.ToListAsync());
+    }
+
     [Fact]
     public async Task Generator_schedules_roomless_course_within_allowed_time()
     {