文档与代码优化: 更新成员管理功能

1. 更新README文档
  - 新增成员管理功能说明
  - 重新组织功能列表
  - 优化分支管理说明

2. 代码优化
  - 优化导入语句
  - 移除未使用的导入
  - 简化数据库回调实现

app/src/main/AndroidManifest.xml

@@ -15,7 +15,6 @@
         <activity
             android:name=".MainActivity"
             android:exported="true"
-            android:label="@string/app_name"
             android:theme="@style/Theme.Bookkeeping">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/yovinchen/bookkeeping/data/BookkeepingDatabase.kt

@@ -138,7 +138,7 @@ abstract class BookkeepingDatabase : RoomDatabase() {
                         BookkeepingDatabase::class.java,
                         "bookkeeping_database"
                     )
-                    .addCallback(object : RoomDatabase.Callback() {
+                    .addCallback(object : Callback() {
                         override fun onCreate(db: SupportSQLiteDatabase) {
                             super.onCreate(db)
                             Log.d(TAG, "Database created, initializing default categories")

app/src/main/java/com/yovinchen/bookkeeping/ui/dialog/CategoryManagementDialog.kt

@@ -2,15 +2,32 @@ package com.yovinchen.bookkeeping.ui.dialog
 
 import android.util.Log
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Delete
-import androidx.compose.material.icons.filled.Edit
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp

app/src/main/java/com/yovinchen/bookkeeping/ui/navigation/MainNavigation.kt

@@ -4,13 +4,20 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Home
 import androidx.compose.material.icons.filled.Settings
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.NavigationBar
+import androidx.compose.material3.NavigationBarItem
+import androidx.compose.material3.NavigationBarItemDefaults
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
 import androidx.navigation.NavDestination.Companion.hierarchy
 import androidx.navigation.NavGraph.Companion.findStartDestination
 import androidx.navigation.compose.NavHost
-import androidx.compose.ui.graphics.Color
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController

app/src/main/java/com/yovinchen/bookkeeping/ui/screen/SettingsScreen.kt

@@ -1,16 +1,30 @@
 package com.yovinchen.bookkeeping.ui.screen
 
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Divider
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
-import com.yovinchen.bookkeeping.model.Category
 import com.yovinchen.bookkeeping.model.ThemeMode
-import com.yovinchen.bookkeeping.model.TransactionType
 import com.yovinchen.bookkeeping.ui.components.ColorPicker
 import com.yovinchen.bookkeeping.ui.components.predefinedColors
 import com.yovinchen.bookkeeping.ui.dialog.CategoryManagementDialog