Initial commit: family safety frontend project setup

lib/widgets/loading_indicator.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+class LoadingIndicator extends StatelessWidget {
+  final String message;
+  
+  const LoadingIndicator({
+    super.key,
+    this.message = 'Loading...',
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          const CircularProgressIndicator(),
+          const SizedBox(height: 16),
+          Text(
+            message,
+            style: const TextStyle(fontSize: 16),
+          ),
+        ],
+      ),
+    );
+  }
+}