feat(api): implement exam and grade synchronization modules

Add new functionality for managing and synchronizing academic grades and exam schedules. This includes new models, repositories, services, and HTTP handlers, along with updated gRPC definitions and dependency injection configuration.

Additionally, improve the reliability of unread message count tracking by implementing an atomic Lua script for Redis operations in the conversation cache.

internal/wire/service.go

@@ -46,6 +46,8 @@ var ServiceSet = wire.NewSet(
 	ProvideChatService,
 	ProvideScheduleService,
 	ProvideScheduleSyncService,
+		ProvideGradeSyncService,
+		ProvideExamSyncService,
 	ProvideGroupService,
 	ProvideUploadService,
 	ProvideUserActivityService,
@@ -230,6 +232,24 @@ func ProvideScheduleSyncService(
 	return service.NewScheduleSyncService(taskManager, scheduleRepo, logger)
 }
 
+// ProvideGradeSyncService 提供成绩同步服务
+func ProvideGradeSyncService(
+	taskManager *runner.TaskManager,
+	gradeRepo repository.GradeRepository,
+	logger *zap.Logger,
+) service.GradeSyncService {
+	return service.NewGradeSyncService(taskManager, gradeRepo, logger)
+}
+
+// ProvideExamSyncService 提供考试安排同步服务
+func ProvideExamSyncService(
+	taskManager *runner.TaskManager,
+	examRepo repository.ExamRepository,
+	logger *zap.Logger,
+) service.ExamSyncService {
+	return service.NewExamSyncService(taskManager, examRepo, logger)
+}
+
 // ProvideGroupService 提供群组服务
 func ProvideGroupService(
 	groupRepo repository.GroupRepository,