Update Saqel Platform: 2026-09-10 12:26:22

apps/teacher_app/lib/data/repositories/teacher_repository.dart

@@ -387,6 +387,7 @@ class TeacherRepository {
     required String gradeLevel,
     required String subject,
     required String curriculumKey,
+    required String videoVersionId,
     String? fileName,
     double? fileSizeMb,
     String? filePath,
@@ -410,6 +411,7 @@ class TeacherRepository {
         'grade_level': gradeLevel,
         'subject': subject,
         'curriculum_key': curriculumKey,
+        'video_version_id': videoVersionId,
       });
       AppLogger.request(
         method: 'POST',
@@ -420,6 +422,7 @@ class TeacherRepository {
           'grade_level': gradeLevel,
           'subject': subject,
           'curriculum_key': curriculumKey,
+          'video_version_id': videoVersionId,
           'file_name': fileName,
           'file_size_mb': fileSizeMb
         },
@@ -468,6 +471,42 @@ class TeacherRepository {
     }
   }
 
+  Future<Map<String, dynamic>> preflightSubmission({
+    required String curriculumLessonId,
+    required String idempotencyKey,
+    bool replacement = false,
+    String? submissionId,
+  }) async {
+    final uri = Uri.parse('$baseUrl/api/teacher/submissions/preflight');
+    try {
+      final headers = await _authHeaders();
+      headers['Idempotency-Key'] = idempotencyKey;
+      final response = await _client
+          .post(
+            uri,
+            headers: headers,
+            body: json.encode({
+              'curriculum_lesson_id': curriculumLessonId,
+              'replacement': replacement,
+              if (submissionId != null) 'submission_id': submissionId,
+            }),
+          )
+          .timeout(const Duration(seconds: 15));
+      final decoded = json.decode(response.body);
+      if (decoded is! Map) {
+        throw StateError('استجاب الخادم بصيغة غير صالحة عند تجهيز الحصة.');
+      }
+      final result = Map<String, dynamic>.from(decoded);
+      if (response.statusCode == 201 || response.statusCode == 200 || response.statusCode == 409 || response.statusCode == 400 || response.statusCode == 404) {
+        return result;
+      }
+      throw StateError(result['message']?.toString() ?? 'تعذر تجهيز نسخة الحصة.');
+    } catch (error) {
+      if (error is StateError) rethrow;
+      throw StateError('تعذر تجهيز نسخة الحصة: $error');
+    }
+  }
+
   Future<Map<String, dynamic>> getCurriculumTree() async {
     final headers = await _authHeaders();
     final response = await _client