fix(audit): centraliser l'horloge UTC

app/models/match_model/base.py

@@ -1,8 +1,7 @@
 """Abstract base class for match models (Match + TeamMatch)."""
 
-from datetime import datetime
-
 from app.extensions import db
+from app.time_utils import utc_now_naive
 
 
 class BaseMatch(db.Model):
@@ -18,4 +17,4 @@ class BaseMatch(db.Model):
     location = db.Column(db.String(200), nullable=True)
     status = db.Column(db.String(20), default='scheduled')
     created_by = db.Column(db.Integer, db.ForeignKey('users.id'), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=utc_now_naive)