feat:初始化工程

lib/main.dart

@@ -0,0 +1,24 @@
+import 'package:fitnote/record.dart';
+import 'package:flutter/material.dart';
+
+void main() {
+  runApp(const HealthLogApp());
+}
+
+class HealthLogApp extends StatelessWidget {
+  const HealthLogApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'HealthLog - 健康记录',
+      theme: ThemeData(
+        fontFamily: 'Inter',
+        scaffoldBackgroundColor: const Color(0xFFF9FAFB),
+        primaryColor: const Color(0xFF38BDF8), // 主色：天空蓝
+      ),
+      home: const RecordPage(),
+      debugShowCheckedModeBanner: false,
+    );
+  }
+}