feat(ai-export): annotate uploads with the expected shot count

lib/features/analysis/analysis_provider.dart

@@ -248,6 +248,7 @@ class AnalysisProvider extends ChangeNotifier {
     String? sessionId,
     int? distance,
     String? caliber,
+    int? expectedShots,
   }) async {
     if (_imagePath == null || _targetType == null) {
       _errorMessage = "Impossible d'exporter : image ou type de cible manquant.";
@@ -273,6 +274,7 @@ class AnalysisProvider extends ChangeNotifier {
       shots: _shots,
       distanceMeters: distance ?? 25,
       caliber: caliber ?? 'unknown',
+      expectedShots: expectedShots,
     );
 
     _state = AnalysisState.success;

lib/features/analysis/analysis_screen.dart

@@ -943,6 +943,11 @@ class _AnalysisScreenContentState extends State<_AnalysisScreenContent> {
           sessionId: sessionProvider.activeSessionId,
           distance: sessionProvider.distance,
           caliber: sessionProvider.currentWeaponCaliber,
+          // Hors session, shotsPerTarget vaut sa valeur par defaut : mieux
+          // vaut ne rien annoncer qu'annoncer un nombre faux.
+          expectedShots: sessionProvider.isSessionActive
+              ? sessionProvider.shotsPerTarget
+              : null,
         );
         messenger.hideCurrentSnackBar();
       }