feat: UI全面改造 + 后端多项修复

【后端修复】
- 删除diet/consultation agent假工具声明
- 修复DayOfWeek实体注释
- 修复Vision API content序列化
- cleanup_service级联删除修复
- 用药提醒时区偏差修复
- 统一DateTime处理(UtcNow+8)
- 新增UTC DateTime JSON转换器

【前端UI重构】
- 配色体系全面更新(#8B5CF6淡紫+#F0ECFF背景)
- 登录页重设计
- 首页重设计(透明顶栏、渐变背景、胶囊输入区)
- 聊天卡片加白蓝边框、渐变标题
- 侧边栏重构(渐变背景、合并顶部、删除底部设置)
- 确认卡片可编辑字段恢复
- 所有子页面加返回按钮
- catch异常加日志
- 删除后refresh provider缓存

health_app/lib/pages/auth/login_page.dart

@@ -1,9 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:shadcn_ui/shadcn_ui.dart';
+import '../../core/app_colors.dart';
 import '../../core/app_theme.dart';
 import '../../core/navigation_provider.dart';
 import '../../providers/auth_provider.dart';
+import '../../providers/data_providers.dart';
 
 class LoginPage extends ConsumerStatefulWidget {
   const LoginPage({super.key});
@@ -46,12 +48,15 @@ class _LoginPageState extends ConsumerState<LoginPage> {
     final err = await ref.read(authProvider.notifier).login(_phoneCtrl.text.trim(), _codeCtrl.text.trim());
     setState(() => _loading = false);
     if (err != null) { setState(() => _error = err); return; }
+    ref.invalidate(latestHealthProvider);
+    ref.invalidate(medicationListProvider);
+    ref.invalidate(medicationReminderProvider);
+    ref.invalidate(currentExercisePlanProvider);
     goRoute(ref, 'home');
   }
 
   @override Widget build(BuildContext context) {
     final authState = ref.watch(authProvider);
-    final theme = ShadTheme.of(context);
     if (authState.isLoggedIn && !authState.isLoading) {
       WidgetsBinding.instance.addPostFrameCallback((_) => goRoute(ref, 'home'));
     }
@@ -60,190 +65,150 @@ class _LoginPageState extends ConsumerState<LoginPage> {
       body: Container(
         decoration: const BoxDecoration(
           gradient: LinearGradient(
-            begin: Alignment.topLeft,
-            end: Alignment.bottomRight,
-            colors: [AppTheme.bg, AppTheme.bg, AppTheme.primaryLight],
+            begin: Alignment.topCenter,
+            end: Alignment.bottomCenter,
+            colors: [Color(0xFFEEF2FF), Color(0xFFF5F3FF)],
           ),
         ),
         child: SafeArea(child: Center(child: SingleChildScrollView(
           padding: const EdgeInsets.symmetric(horizontal: 32),
           child: Column(mainAxisSize: MainAxisSize.min, children: [
-            const SizedBox(height: 24),
+            const SizedBox(height: 40),
             // Logo
             Container(
-              width: 100, height: 100,
+              width: 88, height: 88,
               decoration: BoxDecoration(
-                color: AppTheme.primary.withAlpha(25),
-                borderRadius: BorderRadius.circular(50),
+                color: Colors.white,
+                borderRadius: BorderRadius.circular(44),
+                boxShadow: [BoxShadow(color: AppColors.primary.withOpacity(0.15), blurRadius: 20, offset: const Offset(0, 8))],
               ),
-              child: Stack(alignment: Alignment.center, children: [
-                Container(
-                  width: 72, height: 72,
-                  decoration: BoxDecoration(
-                    color: Colors.white.withAlpha(200),
-                    borderRadius: BorderRadius.circular(36),
+              child: const Icon(LucideIcons.heart, size: 40, color: AppColors.primary),
+            ),
+            const SizedBox(height: 20),
+            const Text('健康管家', style: TextStyle(fontSize: 28, fontWeight: FontWeight.w700, color: AppColors.textPrimary)),
+            const SizedBox(height: 6),
+            const Text('你的 AI 心脏健康管家', style: TextStyle(fontSize: 15, color: AppColors.textSecondary)),
+            const SizedBox(height: 40),
+
+            // 手机号
+            Container(
+              height: 52,
+              decoration: BoxDecoration(
+                color: AppColors.backgroundSoft,
+                borderRadius: BorderRadius.circular(10),
+              ),
+              child: Row(children: [
+                const Padding(padding: EdgeInsets.only(left: 16), child: Text('+86', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500, color: AppColors.textPrimary))),
+                Container(width: 1, height: 24, color: AppColors.border, margin: const EdgeInsets.symmetric(horizontal: 12)),
+                Expanded(
+                  child: TextField(
+                    controller: _phoneCtrl,
+                    keyboardType: TextInputType.phone,
+                    maxLength: 11,
+                    style: const TextStyle(fontSize: 16, color: AppColors.textPrimary),
+                    decoration: const InputDecoration(
+                      hintText: '请输入手机号',
+                      hintStyle: TextStyle(fontSize: 15, color: AppColors.textHint),
+                      border: InputBorder.none,
+                      counterText: '',
+                      contentPadding: EdgeInsets.symmetric(vertical: 14),
+                    ),
                   ),
-                  child: const Icon(LucideIcons.heart, size: 36, color: AppTheme.primary),
                 ),
               ]),
             ),
-            const SizedBox(height: 20),
-            Text('健康管家', style: TextStyle(fontSize: 32, fontWeight: FontWeight.bold, color: theme.colorScheme.foreground)),
-            const SizedBox(height: 8),
-            Text('你的 AI 心脏健康管家', style: TextStyle(fontSize: 18, color: theme.colorScheme.mutedForeground)),
-            const SizedBox(height: 36),
+            const SizedBox(height: 16),
 
-            // 手机号输入
-            _buildPhoneInput(theme),
-            const SizedBox(height: AppTheme.sLg),
+            // 验证码
+            Row(children: [
+              Expanded(
+                child: Container(
+                  height: 52,
+                  decoration: BoxDecoration(
+                    color: AppColors.backgroundSoft,
+                    borderRadius: BorderRadius.circular(10),
+                  ),
+                  child: TextField(
+                    controller: _codeCtrl,
+                    keyboardType: TextInputType.number,
+                    maxLength: 6,
+                    style: const TextStyle(fontSize: 16, color: AppColors.textPrimary),
+                    decoration: const InputDecoration(
+                      hintText: '验证码',
+                      hintStyle: TextStyle(fontSize: 15, color: AppColors.textHint),
+                      border: InputBorder.none,
+                      counterText: '',
+                      contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 14),
+                    ),
+                  ),
+                ),
+              ),
+              const SizedBox(width: 12),
+              GestureDetector(
+                onTap: (_countdown > 0 || _sending) ? null : _sendSms,
+                child: Container(
+                  width: 120, height: 52,
+                  alignment: Alignment.center,
+                  decoration: BoxDecoration(
+                    color: (_countdown > 0 || _sending) ? AppColors.backgroundSoft : AppColors.primary,
+                    borderRadius: BorderRadius.circular(10),
+                  ),
+                  child: Text(
+                    _sending ? '发送中' : _countdown > 0 ? '${_countdown}s' : '获取验证码',
+                    style: TextStyle(fontSize: 15, fontWeight: FontWeight.w500,
+                      color: (_countdown > 0 || _sending) ? AppColors.textHint : Colors.white),
+                  ),
+                ),
+              ),
+            ]),
+            const SizedBox(height: 12),
 
-            // 验证码输入
-            _buildCodeRow(theme),
-            const SizedBox(height: AppTheme.sSm),
+            // 协议
+            GestureDetector(
+              onTap: () => setState(() => _agreed = !_agreed),
+              child: Row(mainAxisSize: MainAxisSize.min, children: [
+                Container(
+                  width: 18, height: 18, margin: const EdgeInsets.only(right: 6),
+                  decoration: BoxDecoration(
+                    color: _agreed ? AppColors.primary : Colors.transparent,
+                    borderRadius: BorderRadius.circular(4),
+                    border: Border.all(color: _agreed ? AppColors.primary : AppColors.border, width: 1.5),
+                  ),
+                  child: _agreed ? const Icon(Icons.check, size: 14, color: Colors.white) : null,
+                ),
+                RichText(text: TextSpan(children: [
+                  TextSpan(text: '已阅读并同意', style: TextStyle(fontSize: 13, color: AppColors.textHint)),
+                  TextSpan(text: '《服务协议》', style: TextStyle(fontSize: 13, color: AppColors.primary)),
+                  TextSpan(text: '和', style: TextStyle(fontSize: 13, color: AppColors.textHint)),
+                  TextSpan(text: '《隐私政策》', style: TextStyle(fontSize: 13, color: AppColors.primary)),
+                ])),
+              ]),
+            ),
 
-            // 协议勾选
-            _buildAgreement(theme),
-
-            // 错误提示
             if (_error != null)
-              Padding(padding: const EdgeInsets.only(top: AppTheme.sMd), child: Text(_error!, style: TextStyle(color: theme.colorScheme.destructive, fontSize: 16))),
+              Padding(padding: const EdgeInsets.only(top: 12), child: Text(_error!, style: const TextStyle(color: AppColors.error, fontSize: 14))),
 
-            const SizedBox(height: AppTheme.rXl),
+            const SizedBox(height: 32),
 
             // 登录按钮
-            _buildLoginButton(theme),
+            GestureDetector(
+              onTap: _loading ? null : _login,
+              child: Container(
+                width: double.infinity, height: 52, alignment: Alignment.center,
+                decoration: BoxDecoration(
+                  gradient: AppColors.primaryGradient,
+                  borderRadius: BorderRadius.circular(12),
+                ),
+                child: _loading
+                    ? const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2.5, color: Colors.white))
+                    : const Text('登 录', style: TextStyle(fontSize: 18, color: Colors.white, fontWeight: FontWeight.w600, letterSpacing: 2)),
+              ),
+            ),
 
-            const SizedBox(height: AppTheme.sXl),
+            const SizedBox(height: 40),
           ]),
         ))),
       ),
     );
   }
-
-  Widget _buildPhoneInput(ShadThemeData theme) {
-    return Container(
-      decoration: BoxDecoration(
-        color: theme.colorScheme.card,
-        borderRadius: BorderRadius.circular(AppTheme.rSm),
-        boxShadow: [AppTheme.shadowLight],
-      ),
-      child: Row(children: [
-        const Padding(padding: EdgeInsets.only(left: AppTheme.sLg), child: Text('+86', style: TextStyle(fontSize: 19, fontWeight: FontWeight.w500, color: AppTheme.text))),
-        Container(width: 1, height: 24, color: theme.colorScheme.border, margin: const EdgeInsets.symmetric(horizontal: AppTheme.sMd)),
-        Expanded(
-          child: TextField(
-            controller: _phoneCtrl,
-            keyboardType: TextInputType.phone,
-            maxLength: 11,
-            style: TextStyle(fontSize: 19, color: theme.colorScheme.foreground),
-            decoration: InputDecoration(
-              hintText: '请输入手机号',
-              hintStyle: TextStyle(color: theme.colorScheme.mutedForeground),
-              border: InputBorder.none,
-              counterText: '',
-              contentPadding: const EdgeInsets.symmetric(vertical: AppTheme.sLg),
-            ),
-          ),
-        ),
-      ]),
-    );
-  }
-
-  Widget _buildCodeRow(ShadThemeData theme) {
-    final codeDisabled = _countdown > 0 || _sending;
-    return Row(children: [
-      Expanded(
-        child: Container(
-          decoration: BoxDecoration(
-            color: theme.colorScheme.card,
-            borderRadius: BorderRadius.circular(AppTheme.rSm),
-            boxShadow: [AppTheme.shadowLight],
-          ),
-          child: TextField(
-            controller: _codeCtrl,
-            keyboardType: TextInputType.number,
-            maxLength: 6,
-            style: TextStyle(fontSize: 19, color: theme.colorScheme.foreground),
-            decoration: InputDecoration(
-              hintText: '验证码',
-              hintStyle: TextStyle(color: theme.colorScheme.mutedForeground),
-              border: InputBorder.none,
-              counterText: '',
-              contentPadding: const EdgeInsets.symmetric(horizontal: AppTheme.sLg, vertical: AppTheme.sLg),
-            ),
-          ),
-        ),
-      ),
-      const SizedBox(width: AppTheme.sMd),
-      GestureDetector(
-        onTap: codeDisabled ? null : _sendSms,
-        child: AnimatedContainer(
-          duration: const Duration(milliseconds: 200),
-          width: 110, height: 52,
-          alignment: Alignment.center,
-          decoration: BoxDecoration(
-            color: codeDisabled ? theme.colorScheme.muted : AppTheme.primary,
-            borderRadius: BorderRadius.circular(AppTheme.rSm),
-          ),
-          child: Text(
-            _sending ? '发送中' : _countdown > 0 ? '${_countdown}s' : '获取验证码',
-            style: TextStyle(
-              fontSize: 17,
-              color: codeDisabled ? theme.colorScheme.mutedForeground : Colors.white,
-              fontWeight: FontWeight.w500,
-            ),
-          ),
-        ),
-      ),
-    ]);
-  }
-
-  Widget _buildAgreement(ShadThemeData theme) {
-    return Align(
-      alignment: Alignment.centerLeft,
-      child: GestureDetector(
-        onTap: () => setState(() => _agreed = !_agreed),
-        child: Row(mainAxisSize: MainAxisSize.min, children: [
-          Container(
-            width: 18, height: 18,
-            margin: const EdgeInsets.only(right: 6),
-            decoration: BoxDecoration(
-              color: _agreed ? AppTheme.primary : Colors.transparent,
-              borderRadius: BorderRadius.circular(4),
-              border: Border.all(
-                color: _agreed ? AppTheme.primary : theme.colorScheme.border,
-                width: 1.5,
-              ),
-            ),
-            child: _agreed ? Icon(LucideIcons.check, size: 15, color: theme.colorScheme.primaryForeground) : null,
-          ),
-          RichText(text: TextSpan(children: [
-            TextSpan(text: '已阅读并同意', style: TextStyle(fontSize: 16, color: theme.colorScheme.mutedForeground)),
-            TextSpan(text: '《服务协议》', style: const TextStyle(fontSize: 16, color: AppTheme.primary)),
-            TextSpan(text: '和', style: TextStyle(fontSize: 16, color: theme.colorScheme.mutedForeground)),
-            TextSpan(text: '《隐私政策》', style: const TextStyle(fontSize: 16, color: AppTheme.primary)),
-          ])),
-        ]),
-      ),
-    );
-  }
-
-  Widget _buildLoginButton(ShadThemeData theme) {
-    return GestureDetector(
-      onTap: _loading ? null : _login,
-      child: Container(
-        width: double.infinity,
-        height: 52,
-        alignment: Alignment.center,
-        decoration: BoxDecoration(
-          gradient: const LinearGradient(colors: [Color(0xFF9B8FEF), AppTheme.primary]),
-          borderRadius: BorderRadius.circular(AppTheme.rPill),
-          boxShadow: [BoxShadow(color: AppTheme.primary.withAlpha(80), blurRadius: 16, offset: const Offset(0, 8))],
-        ),
-        child: _loading
-            ? const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2.5, color: Colors.white))
-            : const Text('登 录', style: TextStyle(fontSize: 20, color: Colors.white, fontWeight: FontWeight.w600, letterSpacing: 2)),
-      ),
-    );
-  }
 }