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packages/database/prisma/schema.prisma

@@ -440,6 +440,10 @@ model LessonProgress {
   
   completedAt   DateTime? @map("completed_at")
   quizScore     Int?      @map("quiz_score") // 0-100
+  quizPassed    Boolean   @default(false) @map("quiz_passed")
+  quizPassedAt  DateTime? @map("quiz_passed_at")
+  homeworkSubmitted   Boolean   @default(false) @map("homework_submitted")
+  homeworkSubmittedAt DateTime? @map("homework_submitted_at")
   
   createdAt     DateTime  @default(now()) @map("created_at")
   
@@ -461,6 +465,7 @@ model CourseGroup {
   courseId    String   @map("course_id")
   name        String
   description String?  @db.Text
+  isDefault   Boolean  @default(false) @map("is_default")
   
   createdAt   DateTime @default(now()) @map("created_at")
   updatedAt   DateTime @updatedAt @map("updated_at")
@@ -509,7 +514,7 @@ model GroupMessage {
 
 model Homework {
   id              String   @id @default(uuid())
-  lessonId        String   @map("lesson_id")
+  lessonId        String   @unique @map("lesson_id")
   title           String
   description     String   @db.Text
   dueDate         DateTime? @map("due_date")
@@ -524,6 +529,12 @@ model Homework {
   @@map("homework")
 }
 
+enum HomeworkReviewStatus {
+  SUBMITTED
+  AI_REVIEWED
+  TEACHER_REVIEWED
+}
+
 model HomeworkSubmission {
   id            String   @id @default(uuid())
   homeworkId    String   @map("homework_id")
@@ -531,12 +542,13 @@ model HomeworkSubmission {
   content       String   @db.Text
   
   // AI grading
-  aiScore       Int?     @map("ai_score") // 0-100
+  aiScore       Int?     @map("ai_score") // 1-5
   aiFeedback    String?  @db.Text @map("ai_feedback")
   
   // Teacher grading
-  teacherScore  Int?     @map("teacher_score") // 0-100
+  teacherScore  Int?     @map("teacher_score") // 1-5
   teacherFeedback String? @db.Text @map("teacher_feedback")
+  reviewStatus  HomeworkReviewStatus @default(SUBMITTED) @map("review_status")
   
   submittedAt   DateTime @default(now()) @map("submitted_at")
   gradedAt      DateTime? @map("graded_at")