branch backend + ajout du serveur backend, next, et sqlite

lib/features/analysis/analysis_screen.dart

@@ -15,6 +15,7 @@ import '../../data/repositories/session_repository.dart';
 import '../../services/target_detection_service.dart';
 import '../../services/score_calculator_service.dart';
 import '../../services/grouping_analyzer_service.dart';
+import '../../services/wallet_identity_service.dart';
 import 'analysis_provider.dart';
 import 'widgets/target_overlay.dart';
 import 'widgets/target_calibration.dart';
@@ -133,6 +134,47 @@ class _AnalysisScreenContentState extends State<_AnalysisScreenContent> {
               );
             },
           ),
+          FutureBuilder<bool>(
+            future: WalletIdentityService().isUploadEnabled(),
+            builder: (context, snapshot) {
+              final isEnabled = snapshot.data ?? false;
+              if (!isEnabled) return const SizedBox.shrink();
+
+              return IconButton(
+                icon: const Icon(Icons.cloud_upload),
+                onPressed: () async {
+                  final provider = context.read<AnalysisProvider>();
+                  if (provider.state != AnalysisState.success) return;
+
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    const SnackBar(content: Text('Exportation en cours...')),
+                  );
+
+                  final success = await provider.exportToAiBackend();
+
+                  if (context.mounted) {
+                    ScaffoldMessenger.of(context).hideCurrentSnackBar();
+                    if (success) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        const SnackBar(
+                          content: Text('Export réussi vers le backend IA !'),
+                          backgroundColor: AppTheme.successColor,
+                        ),
+                      );
+                    } else {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(
+                          content: Text(provider.errorMessage ?? 'Erreur d\'export'),
+                          backgroundColor: AppTheme.errorColor,
+                        ),
+                      );
+                    }
+                  }
+                },
+                tooltip: 'Exporter pour IA',
+              );
+            },
+          ),
           IconButton(
             icon: const Icon(Icons.help_outline),
             onPressed: () => _showHelpDialog(context),