계정 정보 다이얼로그 추가 및 전체 목록 페치 개선

lib/features/dashboard/presentation/pages/dashboard_page.dart

@@ -127,7 +127,9 @@ class _DashboardPageState extends State<DashboardPage> {
                 Align(
                   alignment: Alignment.centerRight,
                   child: ShadButton(
-                    onPressed: _controller.refresh,
+                    onPressed: _controller.isLoading
+                        ? null
+                        : _controller.refresh,
                     child: const Text('다시 시도'),
                   ),
                 ),
@@ -138,12 +140,15 @@ class _DashboardPageState extends State<DashboardPage> {
       );
     }
 
-    final kpiMap = {for (final item in summary.kpis) item.key: item};
+    final kpiMap = summary.kpis.fold<Map<String, DashboardKpi>>({}, (map, kpi) {
+      map[kpi.key] = kpi;
+      return map;
+    });
 
     return SingleChildScrollView(
-      padding: const EdgeInsets.only(right: 12, bottom: 24),
+      padding: const EdgeInsets.only(bottom: 48),
       child: Column(
-        crossAxisAlignment: CrossAxisAlignment.stretch,
+        crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           if (_controller.errorMessage != null)
             Padding(