feat：实现登录系统和用户认证功能

- 添加登录场景（login_scene.tscn）和主菜单场景（main_menu_scene.tscn）
- 实现认证管理器（AuthManager）用于用户登录和会话管理
- 添加核心服务：加密服务、存储服务、网络服务
- 配置项目主场景为登录场景
- 添加自动加载服务到项目配置
- 添加开发环境配置（VSCode、Claude）

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

scripts/managers/StorageService.gd

@@ -0,0 +1,124 @@
+extends Node
+
+## 存储服务
+## 负责本地配置的读写，包括用户账号、密码、Token 等
+
+# 配置文件路径
+const CONFIG_PATH: String = "user://user_config.cfg"
+
+# ConfigFile 实例
+var _config: ConfigFile
+
+func _ready():
+	_config = ConfigFile.new()
+	_loadConfig()
+
+## 加载配置文件
+func _loadConfig() -> void:
+	var error = _config.load(CONFIG_PATH)
+	if error != OK and error != ERR_FILE_NOT_FOUND:
+		push_error("加载配置文件失败: " + str(error))
+
+## 保存配置文件
+func _saveConfig() -> void:
+	var error = _config.save(CONFIG_PATH)
+	if error != OK:
+		push_error("保存配置文件失败: " + str(error))
+
+## 保存键值对
+func save(section: String, key: String, value: Variant) -> void:
+	_config.set_value(section, key, value)
+	_saveConfig()
+
+## 读取值
+func getValue(section: String, key: String, defaultValue: Variant = null) -> Variant:
+	return _config.get_value(section, key, defaultValue)
+
+## 保存账号信息（包括加密的密码）
+func saveAccount(username: String, password: String, remember: bool) -> void:
+	save("account", "last_username", username)
+
+	if remember and not password.is_empty():
+		# 加密密码后保存
+		var encryptedPassword = EncryptionService.encrypt(password)
+		save("account", "saved_password", encryptedPassword)
+		save("account", "remember_password", true)
+	else:
+		# 不记住密码，清除保存的密码
+		clearSavedPassword()
+
+## 读取保存的账号信息
+func loadAccount() -> Dictionary:
+	var username = getValue("account", "last_username", "")
+	var rememberPassword = getValue("account", "remember_password", false)
+	var encryptedPassword = getValue("account", "saved_password", "")
+
+	var result = {
+		"username": username,
+		"remember_password": rememberPassword
+	}
+
+	# 如果记住密码，解密密码
+	if rememberPassword and not encryptedPassword.is_empty():
+		var decryptedPassword = EncryptionService.decrypt(encryptedPassword)
+		result["password"] = decryptedPassword
+	else:
+		result["password"] = ""
+
+	return result
+
+## 清除保存的密码
+func clearSavedPassword() -> void:
+	save("account", "saved_password", "")
+	save("account", "remember_password", false)
+
+## 保存 Token
+func saveToken(token: String, expireTime: int = 0) -> void:
+	save("auth", "token", token)
+	save("auth", "expire_time", expireTime)
+
+## 读取 Token
+func loadToken() -> Dictionary:
+	var token = getValue("auth", "token", "")
+	var expireTime = getValue("auth", "expire_time", 0)
+
+	return {
+		"token": token,
+		"expire_time": expireTime
+	}
+
+## 清除 Token
+func clearToken() -> void:
+	save("auth", "token", "")
+	save("auth", "expire_time", 0)
+
+## 保存用户信息
+func saveUserData(userData: UserData) -> void:
+	if userData == null:
+		return
+
+	save("user", "id", userData.id)
+	save("user", "username", userData.username)
+	save("user", "email", userData.email)
+	save("user", "level", userData.level)
+	save("user", "exp", userData.exp)
+	save("user", "avatar_url", userData.avatarUrl)
+
+## 读取用户信息
+func loadUserData() -> UserData:
+	var userData = UserData.new()
+	userData.id = str(getValue("user", "id", ""))
+	userData.username = getValue("user", "username", "")
+	userData.email = getValue("user", "email", "")
+	userData.level = getValue("user", "level", 1)
+	userData.exp = getValue("user", "exp", 0)
+	userData.avatarUrl = getValue("user", "avatar_url", "")
+
+	return userData if not userData.id.is_empty() else null
+
+## 清除所有用户数据
+func clearAll() -> void:
+	clearSavedPassword()
+	clearToken()
+	_config.clear()
+	_saveConfig()