fix: confirm module shutdown before disconnect or release

prisma/schema.prisma

@@ -32,6 +32,7 @@ model User {
   platformControlQueueEntries PlatformControlQueueEntry[]
   studioRepositories StudioRepository[]
   savedMaps StudentSavedMap[]
+  customModules StudentCustomModule[]
   submissionScores SubmissionScore[]
   submissionTotalScores SubmissionTotalScore[]
 
@@ -160,6 +161,7 @@ model Course {
   maps            CourseMap[]
   weekMaps        CourseWeekMap[]
   savedMaps       StudentSavedMap[]
+  customModules   StudentCustomModule[]
   submissionScores SubmissionScore[]
   submissionTotalScores SubmissionTotalScore[]
 
@@ -277,6 +279,28 @@ model StudentSavedMap {
   @@map("student_saved_maps")
 }
 
+model StudentCustomModule {
+  id          String   @id @default(uuid()) @db.Uuid
+  userId      String   @map("user_id") @db.Uuid
+  courseId    String   @map("course_id") @db.Uuid
+  week        Int
+  sortOrder   Int      @map("sort_order")
+  category    String
+  name        String
+  folderName  String   @map("folder_name")
+  dockerImage String?  @map("docker_image")
+  packageName String   @map("package_name")
+  launchFile  String   @map("launch_file")
+  createdAt   DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
+  updatedAt   DateTime @updatedAt @map("updated_at") @db.Timestamptz(3)
+  user        User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  course      Course   @relation(fields: [courseId], references: [id], onDelete: Cascade)
+
+  @@unique([userId, courseId, week, folderName])
+  @@index([userId, courseId, week, sortOrder])
+  @@map("student_custom_modules")
+}
+
 model InstructorCurriculumSetting {
   id                 String   @id @default(uuid()) @db.Uuid
   organizationId     String?  @map("organization_id") @db.Uuid