chore: 初始化脚手架 — sunny_mochi 企业级 Flutter 模板

Core 基础设施：Flavor 三包体系、Drift+SQLCipher 加密数据库 7 拦截器 Dio 网络栈、CrashReporter 崩溃日志、Sealed Failure 错误体系 5 色板主题系统、Auth 认证骨架（Clean Architecture）、Dev Panel、Mock Adapter 通过验证：flutter analyze（0 errors）、flutter test（全绿）、staging APK 74.8MB
2026-05-14 12:51:05 +08:00
commit 61017f1c39
204 changed files with 15386 additions and 0 deletions
@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+
+/// 错误状态视图，提供重试按钮。
+class ErrorView extends StatelessWidget {
+  const ErrorView({
+    super.key,
+    this.message = '加载失败，请重试',
+    this.onRetry,
+  });
+
+  final String message;
+  final VoidCallback? onRetry;
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Padding(
+        padding: const EdgeInsets.all(32),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Icon(
+              Icons.error_outline,
+              size: 56,
+              color: Theme.of(context).colorScheme.error,
+            ),
+            const SizedBox(height: 16),
+            Text(
+              message,
+              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
+              textAlign: TextAlign.center,
+            ),
+            if (onRetry != null) ...[
+              const SizedBox(height: 24),
+              FilledButton.tonal(
+                onPressed: onRetry,
+                child: const Text('重试'),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}