Initial commit: unionflow-mobile-apps

Application Flutter complète (sans build artifacts).

Signed-off-by: lions dev Team

lib/shared/widgets/core_card.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+import '../design_system/tokens/app_colors.dart';
+
+/// UnionFlow Mobile - Composant DRY Centralisé : CoreCard
+/// Le seul et unique conteneur d'affichage (Posts, Événements, Profils).
+/// Design : Minimaliste Premium, Bordures ultra-fines, Ombre invisible mais présente.
+class CoreCard extends StatelessWidget {
+  final Widget child;
+  final EdgeInsetsGeometry padding;
+  final EdgeInsetsGeometry margin;
+  final VoidCallback? onTap;
+  final Color? backgroundColor;
+
+  const CoreCard({
+    Key? key,
+    required this.child,
+    this.padding = const EdgeInsets.all(12.0),
+    this.margin = const EdgeInsets.only(bottom: 10.0),
+    this.onTap,
+    this.backgroundColor,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final isDark = Theme.of(context).brightness == Brightness.dark;
+    
+    return Container(
+      width: double.infinity,
+      margin: margin,
+      decoration: BoxDecoration(
+        color: backgroundColor ?? (isDark ? const Color(0xFF1A1A1A) : Colors.white),
+        borderRadius: BorderRadius.circular(6.0),
+        border: Border.all(
+          color: isDark ? AppColors.darkBorder.withOpacity(0.5) : AppColors.lightBorder,
+          width: 0.4, 
+        ),
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withOpacity(isDark ? 0.3 : 0.03),
+            blurRadius: 10,
+            offset: const Offset(0, 4),
+          ),
+        ],
+      ),
+      child: Material(
+        color: Colors.transparent,
+        child: InkWell(
+          onTap: onTap,
+          borderRadius: BorderRadius.circular(6.0),
+          child: Padding(
+            padding: padding,
+            child: child,
+          ),
+        ),
+      ),
+    );
+  }
+}