refactor: 优化前端功能屏幕

- 优化AboutScreen关于页面
- 优化AccountManagementScreen账户管理页面
- 优化CreateMemoryScreen创建回忆页面
- 优化LegalDocumentScreen法律文档页面
- 优化ProfileScreen个人资料页面
- 优化ResetPasswordScreen重置密码页面
- 优化AuthViewModel认证ViewModel

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/AboutScreen.kt

@@ -1,16 +1,20 @@
 package com.huaga.life_echo.ui.screens
 
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import com.huaga.life_echo.navigation.Screen
 import com.huaga.life_echo.ui.components.common.TransparentTopAppBar
 import com.huaga.life_echo.ui.components.common.TransparencyType
 import com.huaga.life_echo.ui.icons.AppIcons
@@ -80,7 +84,7 @@ fun AboutScreen(
             
             // 应用名称
             Text(
-                text = "Life Echo",
+                text = "岁月史书",
                 fontSize = 28.sp,
                 fontWeight = FontWeight.Bold,
                 color = MaterialTheme.colorScheme.onSurface,
@@ -114,7 +118,7 @@ fun AboutScreen(
             )
             
             Text(
-                text = "Life Echo 是一款智能回忆录助手应用，帮助您记录和整理生活中的美好回忆。通过AI对话的方式，轻松创建属于您的个人回忆录。",
+                text = "岁月史书是一款专为长辈设计的智能回忆录助手应用，帮助老年人轻松记录和整理一生中的美好回忆。通过简单的AI对话方式，无需复杂操作，就能将珍贵的人生故事转化为精美的个人回忆录。\n\n当然，无论您是什么年龄，都可以使用岁月史书来记录属于自己的故事。",
                 fontSize = 16.sp,
                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                 modifier = Modifier
@@ -158,9 +162,41 @@ fun AboutScreen(
                 color = MaterialTheme.colorScheme.outlineVariant
             )
             
+            // 法律条款
+            Text(
+                text = "法律条款",
+                fontSize = 20.sp,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.onSurface,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(bottom = 12.dp)
+            )
+            
+            // 用户协议
+            LegalDocumentItem(
+                title = "用户协议",
+                onClick = { navController?.navigate(Screen.Terms.route) }
+            )
+            
+            // 隐私政策
+            LegalDocumentItem(
+                title = "隐私政策",
+                onClick = { navController?.navigate(Screen.Privacy.route) }
+            )
+            
+            Spacer(modifier = Modifier.height(16.dp))
+            
+            HorizontalDivider(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(vertical = 16.dp),
+                color = MaterialTheme.colorScheme.outlineVariant
+            )
+            
             // 版权信息
             Text(
-                text = "© 2026 Life Echo. All rights reserved.",
+                text = "© 2026 岁月史书. All rights reserved.",
                 fontSize = 14.sp,
                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                 modifier = Modifier.padding(top = 16.dp)
@@ -170,3 +206,35 @@ fun AboutScreen(
         }
     }
 }
+
+/**
+ * 法律文档列表项
+ */
+@Composable
+private fun LegalDocumentItem(
+    title: String,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Row(
+        modifier = modifier
+            .fillMaxWidth()
+            .clip(RoundedCornerShape(8.dp))
+            .clickable(onClick = onClick)
+            .padding(vertical = 12.dp, horizontal = 4.dp),
+        horizontalArrangement = Arrangement.SpaceBetween,
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Text(
+            text = title,
+            fontSize = 16.sp,
+            color = MaterialTheme.colorScheme.onSurface
+        )
+        Icon(
+            imageVector = AppIcons.ChevronRight,
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier.size(20.dp)
+        )
+    }
+}

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/AccountManagementScreen.kt

@@ -79,7 +79,7 @@ fun AccountManagementScreen(
                 navigationIcon = {
                     IconButton(onClick = onNavigateBack) {
                         Icon(
-                            imageVector = Icons.Default.ArrowBack,
+                            imageVector = AppIcons.ArrowBack,
                             contentDescription = "返回"
                         )
                     }

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/CreateMemoryScreen.kt

@@ -16,6 +16,7 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.lifecycle.viewmodel.compose.viewModel
+import com.huaga.life_echo.config.AppConfig
 import com.huaga.life_echo.data.database.Message
 import com.huaga.life_echo.network.models.MessageDto
 import com.huaga.life_echo.ui.components.chat.*
@@ -112,21 +113,23 @@ fun CreateMemoryScreen(
             onBackClick = { navController?.popBackStack() }
         )
         
-        // WebSocket调试面板（开发测试用）
+        // WebSocket调试面板（仅在开发模式下显示）
-        WebSocketDebugPanel(
+        if (AppConfig.isDebugMode) {
-            connectionStatus = connectionStatus,
+            WebSocketDebugPanel(
-            conversationId = conversationIdState,
+                connectionStatus = connectionStatus,
-            isConnected = wsIsConnected,
+                conversationId = conversationIdState,
-            isStreaming = isStreaming,
+                isConnected = wsIsConnected,
-            isTyping = isTyping,
+                isStreaming = isStreaming,
-            lastMessageType = lastMessageType,
+                isTyping = isTyping,
-            lastMessageTime = lastMessageTime,
+                lastMessageType = lastMessageType,
-            errorMessages = errorMessages,
+                lastMessageTime = lastMessageTime,
-            messageCount = messageCount,
+                errorMessages = errorMessages,
-            modifier = Modifier
+                messageCount = messageCount,
-                .fillMaxWidth()
+                modifier = Modifier
-                .padding(horizontal = 16.dp, vertical = 8.dp)
+                    .fillMaxWidth()
-        )
+                    .padding(horizontal = 16.dp, vertical = 8.dp)
+            )
+        }
         
         // 使用新的MessageList组件（包含所有消息、流式内容和输入指示器）
         MessageList(

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/LegalDocumentScreen.kt

@@ -3,8 +3,6 @@ package com.huaga.life_echo.ui.screens
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import androidx.compose.foundation.layout.*
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -13,6 +11,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.viewinterop.AndroidView
 import com.huaga.life_echo.config.AppConfig
+import com.huaga.life_echo.ui.icons.AppIcons
 
 /**
  * 法律文档页面（用户协议或隐私政策）
@@ -34,7 +33,7 @@ fun LegalDocumentScreen(
                 navigationIcon = {
                     IconButton(onClick = onNavigateBack) {
                         Icon(
-                            imageVector = Icons.Default.ArrowBack,
+                            imageVector = AppIcons.ArrowBack,
                             contentDescription = "返回"
                         )
                     }

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/ProfileScreen.kt

@@ -250,6 +250,23 @@ fun ProfileScreen(
             }
         }
         
+        // 账户管理（登录后显示，放在靠前位置）
+        if (isLoggedIn) {
+            item {
+                SectionTitle("账户管理")
+                SettingCard {
+                    SettingItem(
+                        icon = AppIcons.ManageAccounts,
+                        title = "账户管理",
+                        subtitle = "修改密码、手机号、登出管理",
+                        onClick = { 
+                            navController?.navigate(Screen.AccountManagement.route)
+                        }
+                    )
+                }
+            }
+        }
+        
         // 套餐与付费
         item {
             SectionTitle("套餐与付费")
@@ -358,17 +375,6 @@ fun ProfileScreen(
                     },
                     onClick = { darkMode = !darkMode }
                 )
-                if (isLoggedIn) {
-                    HorizontalDivider(modifier = Modifier.padding(horizontal = 16.dp))
-                    SettingItem(
-                        icon = AppIcons.ManageAccounts,
-                        title = "账户管理",
-                        subtitle = "修改密码、手机号、登出管理",
-                        onClick = { 
-                            navController?.navigate(Screen.AccountManagement.route)
-                        }
-                    )
-                }
             }
         }
         

app-android/app/src/main/java/com/huaga/life_echo/ui/screens/ResetPasswordScreen.kt

@@ -98,7 +98,7 @@ fun ResetPasswordScreen(
                 navigationIcon = {
                     IconButton(onClick = onBackToLogin) {
                         Icon(
-                            imageVector = Icons.Default.ArrowBack,
+                            imageVector = AppIcons.ArrowBack,
                             contentDescription = "返回"
                         )
                     }

app-android/app/src/main/java/com/huaga/life_echo/ui/viewmodel/AuthViewModel.kt

@@ -159,7 +159,7 @@ class AuthViewModel(private val context: Context) : ViewModel() {
                     _operationResult.value = OperationResult(
                         success = true,
                         message = "注册成功",
-                        details = "账号已创建，欢迎加入 Life Echo！正在跳转..."
+                        details = "账号已创建，欢迎加入岁月史书！正在跳转..."
                     )
                 },
                 onFailure = { exception ->
@@ -419,7 +419,7 @@ class AuthViewModel(private val context: Context) : ViewModel() {
                     _operationResult.value = OperationResult(
                         success = true,
                         message = "注册成功",
-                        details = "账号已创建，欢迎加入 Life Echo！正在跳转..."
+                        details = "账号已创建，欢迎加入岁月史书！正在跳转..."
                     )
                 },
                 onFailure = { exception ->