feat: 全面UI改造 — 报告/饮食/运动/用药/侧边栏/对话流/胶囊

- 报告模块：重写AI解读页，统一白色卡片+三栏布局(指标→解读→医生审核)；加删除功能+后端删接口；VLM自动识别报告类型生成中文标题；去五颜六色
- 饮食分析：全面重设计，暖橙主题配色，图片自适应，餐次emoji选择器，去紫色
- 运动确认卡片：修复duration_minutes JSON类型转换，支持中文数字识别(三十分钟/半小时→30)；主区域只显示运动名，字段行改为横向排列
- 流式输出：简化为最基础逐字追加，去buffer+Timer+淡入动画
- 欢迎卡片：每智能体独立渐变色(青/橙/蓝/紫/绿/粉)，加卡片入场滑入+淡入动画(600ms)
- 确认卡片：头部去紫色背景改浅灰白，字段行去图标改纯信息横排，编辑框去双重边框
- 用药管理：胶囊改TabBar，添加按钮改右下FAB；打卡按钮改对号圆圈形式；药丸图标白底
- 侧边栏：加VIP服务/保险栏+图标，标题字体放大；服务包去查看更多+去VIP金色标签
- 胶囊：首页智能体胶囊白底深色字; side胶囊加阴影
- 对话流：reverse=false，今日健康出现在顶部; 对话页input bar匹配主页面样式
- 其他：个人资料去紫色+去多余入口；设置页白底图标；蓝牙页加返回按钮；报告管理改名
- 后端：加DELETE /api/reports/{id}; 修复manage_exercise数据类型转换；AI提示优化中文数字

health_app/lib/pages/consultation/consultation_pages.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_markdown/flutter_markdown.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/data_providers.dart';
@@ -63,15 +64,14 @@ class _DoctorChatPageState extends ConsumerState<DoctorChatPage> {
     final state = ref.watch(consultationChatProvider);
     final canSend = state.status == 'AiTalking' && !state.isSending;
 
-    return Scaffold(
-      backgroundColor: AppTheme.bg,
+    return GradientScaffold(
       appBar: AppBar(
         backgroundColor: Colors.white,
         title: Column(children: [
           Text(state.doctorName.isNotEmpty ? '${state.doctorName} · ${state.doctorDepartment}' : '问诊对话',
               style: const TextStyle(fontSize: 19, fontWeight: FontWeight.w600, color: Color(0xFF1A1A1A))),
           if (state.doctorName.isNotEmpty)
-            Text(_statusText(state.status), style: const TextStyle(fontSize: 15, color: AppTheme.primaryLight)),
+            Text(_statusText(state.status), style: const TextStyle(fontSize: 15, color: AppColors.textSecondary)),
         ]),
         centerTitle: true,
         actions: [
@@ -79,11 +79,11 @@ class _DoctorChatPageState extends ConsumerState<DoctorChatPage> {
             margin: const EdgeInsets.only(right: 12),
             padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 4),
             decoration: BoxDecoration(
-              color: AppTheme.primaryLight,
+              color: Colors.white,
               borderRadius: BorderRadius.circular(12),
             ),
             child: Text('剩余${state.quotaRemaining}/${state.quotaTotal}次',
-                style: const TextStyle(fontSize: 15, color: AppTheme.primaryLight, fontWeight: FontWeight.w500)),
+                style: const TextStyle(fontSize: 15, color: AppColors.textPrimary, fontWeight: FontWeight.w500)),
           ),
         ],
       ),
@@ -171,30 +171,47 @@ class _DoctorChatPageState extends ConsumerState<DoctorChatPage> {
 
   Widget _buildInputBar(bool canSend) {
     return Container(
-      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 8),
+      padding: const EdgeInsets.fromLTRB(12, 8, 12, 10),
       decoration: BoxDecoration(
         color: Colors.white,
         border: const Border(top: BorderSide(color: Color(0xFFEEEEEE))),
       ),
-      child: Row(children: [
+      child: Row(crossAxisAlignment: CrossAxisAlignment.end, children: [
         Expanded(
-          child: TextField(
-            controller: _textCtrl,
-            enabled: canSend,
-            style: const TextStyle(fontSize: 18),
-            decoration: InputDecoration(
-              hintText: canSend ? '描述您的症状...' : '对话已结束',
-              hintStyle: const TextStyle(fontSize: 18, color: Color(0xFFBBBBBB)),
-              contentPadding: const EdgeInsets.symmetric(horizontal: 10, vertical: 10),
-              border: InputBorder.none,
+          child: Container(
+            constraints: const BoxConstraints(maxHeight: 120),
+            decoration: BoxDecoration(
+              color: AppColors.backgroundSoft,
+              borderRadius: BorderRadius.circular(20),
+            ),
+            child: TextField(
+              controller: _textCtrl,
+              enabled: canSend,
+              maxLines: null,
+              style: const TextStyle(fontSize: 18),
+              decoration: InputDecoration(
+                hintText: canSend ? '描述您的症状...' : '对话已结束',
+                hintStyle: const TextStyle(fontSize: 18, color: Color(0xFFBBBBBB)),
+                contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
+                border: const OutlineInputBorder(borderRadius: BorderRadius.all(Radius.circular(20)), borderSide: BorderSide.none),
+                enabledBorder: const OutlineInputBorder(borderRadius: BorderRadius.all(Radius.circular(20)), borderSide: BorderSide.none),
+                focusedBorder: const OutlineInputBorder(borderRadius: BorderRadius.all(Radius.circular(20)), borderSide: BorderSide.none),
+              ),
+              onSubmitted: (_) => _send(),
             ),
-            onSubmitted: (_) => _send(),
           ),
         ),
-        IconButton(
-          icon: Icon(Icons.send, size: 28,
-              color: canSend ? AppTheme.primary : const Color(0xFFCCCCCC)),
-          onPressed: canSend ? _send : null,
+        const SizedBox(width: 8),
+        GestureDetector(
+          onTap: canSend ? _send : null,
+          child: Container(
+            width: 40, height: 40,
+            decoration: BoxDecoration(
+              color: canSend ? AppColors.blueMeasure : const Color(0xFFCCCCCC),
+              borderRadius: BorderRadius.circular(20),
+            ),
+            child: const Icon(Icons.send_rounded, size: 20, color: Colors.white),
+          ),
         ),
       ]),
     );