fix(audit): centraliser l'horloge UTC

app/routes/users/contracts.py

@@ -2,7 +2,6 @@
 
 import os
 import uuid
-from datetime import datetime
 
 from flask import flash, redirect, render_template, request, send_file, url_for
 from flask_babel import gettext as _
@@ -20,6 +19,7 @@ from app.routes.users._shared import (
 )
 from app.routes.users.blueprint import users_bp
 from app.storage import CONTRACTS_DIR, document_path
+from app.time_utils import utc_now_naive
 from app.validators import UploadContractSchema
 
 
@@ -172,7 +172,7 @@ def upload_signed_contract(contract_id):
     contract.signed_filename = signed_filename
     contract.signed_file_path = signed_path
     contract.status = 'signed'
-    contract.signed_at = datetime.utcnow()
+    contract.signed_at = utc_now_naive()
     db.session.commit()
     flash(_('Signed contract uploaded successfully!'), 'success')
     return redirect(url_for('users.list_contracts'))

app/routes/users/one_on_one.py

@@ -1,7 +1,5 @@
 """One-on-one sessions between a player and their coach."""
 
-from datetime import datetime
-
 from flask import flash, redirect, render_template, request, url_for
 from flask_babel import gettext as _
 from flask_login import current_user, login_required
@@ -12,6 +10,7 @@ from app.forms import flash_validation_errors, form_payload
 from app.models import Coach, CoachAvailability, OneOnOneRequest, PersonalNote, Player, TeamNote
 from app.routes.users.blueprint import users_bp
 from app.services.notifications import send_discord_notification
+from app.time_utils import utc_now_naive
 from app.validators import OneOnOneRejectionSchema, OneOnOneRequestSchema
 
 
@@ -178,7 +177,7 @@ def accept_one_on_one(request_id):
 
     player = request_obj.player
     request_obj.status = 'approved'
-    request_obj.responded_at = datetime.utcnow()
+    request_obj.responded_at = utc_now_naive()
     db.session.commit()
 
     # Notify player via Discord (same message as if approved through Discord reactions)
@@ -235,7 +234,7 @@ def reject_one_on_one(request_id):
     player = request_obj.player
 
     request_obj.status = 'rejected'
-    request_obj.responded_at = datetime.utcnow()
+    request_obj.responded_at = utc_now_naive()
     if rejection_reason:
         request_obj.coach_rejection_message = rejection_reason
     db.session.commit()