Enhance Zsh and Config Commands, Update Network Configuration

- Implemented comprehensive Zsh installation command with multiple network scenarios
- Added 'config show' subcommand to display agent configuration
- Updated version command to print version information
- Modified Network configuration to clarify internet connectivity status
- Improved download utility with additional file existence checks
- Updated agent-wdd rules and documentation

agent-wdd/config/Network.go

@@ -39,25 +39,9 @@ func (network *Network) Gather() {
 	//获取本机网卡相关的内容
 }
 
-// CanConnectInternet 判定主机能够上网
+// CanConnectInternet 判定主机能够上网 外网为9 国内为7 不能上网为1
 func CanConnectInternet() int {
 
-	// 初始化 ConfigCache
-	if ConfigCache == nil {
-		ConfigCache = &Config{
-			TimeStamp:     "",
-			ModifiedTimes: 0,
-			Agent: Agent{
-				OS:      OS{},
-				Network: Network{},
-				CPU:     CPU{},
-				Mem:     Memory{},
-				Swap:    Swap{},
-				Disks:   []Disk{},
-			},
-		}
-	}
-
 	// 读取 config 文件，判定能否上网
 	internetCode := ConfigCache.Agent.Network.Internet