feat(class): improve class/id

backend/schemas/class_group.py

@@ -3,7 +3,7 @@ Schemas Pydantic pour ClassGroup.
 """
 
 from datetime import date
-from typing import Optional, List
+from typing import Optional, List, Dict
 
 from pydantic import Field
 
@@ -117,6 +117,9 @@ class StudentAverage(BaseSchema):
     full_name: str
     average: Optional[float] = None
     assessment_count: int = 0
+    assessment_scores: Dict[int, "AssessmentScore"] = {}
+    domain_stats: Dict[int, "DomainStudentStats"] = {}
+    competence_stats: Dict[int, "CompetenceStudentStats"] = {}
 
 
 class HistogramBin(BaseSchema):
@@ -128,14 +131,43 @@ class HistogramBin(BaseSchema):
     count: int
 
 
+class AssessmentScore(BaseSchema):
+    """Score d'un élève pour une évaluation."""
+    
+    assessment_id: int
+    assessment_title: str
+    score: Optional[float] = None
+    max_points: float = 0.0
+    score_on_20: Optional[float] = None
+
+
+class DomainStudentStats(BaseSchema):
+    """Statistiques d'un élève pour un domaine."""
+    
+    domain_id: int
+    evaluation_count: int = 0
+    total_points_obtained: float = 0.0
+    total_points_possible: float = 0.0
+
+
+class CompetenceStudentStats(BaseSchema):
+    """Statistiques d'un élève pour une compétence."""
+    
+    competence_id: int
+    evaluation_count: int = 0
+    total_points_obtained: float = 0.0
+    total_points_possible: float = 0.0
+
+
 class DomainStats(BaseSchema):
     """Statistiques par domaine."""
 
     id: int
     name: str
     color: str
-    mean: Optional[float] = None
-    elements_count: int = 0
+    evaluation_count: int = 0
+    total_points_obtained: float = 0.0
+    total_points_possible: float = 0.0
 
 
 class CompetenceStats(BaseSchema):
@@ -144,8 +176,9 @@ class CompetenceStats(BaseSchema):
     id: int
     name: str
     color: str
-    mean: Optional[float] = None
-    elements_count: int = 0
+    evaluation_count: int = 0
+    total_points_obtained: float = 0.0
+    total_points_possible: float = 0.0
 
 
 class ClassDashboardStats(BaseSchema):