enh: taos shell support cloud service (#13883)

* enh: support url in commandline taos shell

* fix: normal host logic

* enh: add default -R if env var set

* fix: refine taos shell cloud service

* fix: improve user friendly

* fix: add cloud tcp connection

* fix: header file

* fix: default restul

* fix: other plat os

src/kit/shell/src/shellDarwin.c

@@ -583,9 +583,11 @@ int tcpConnect(char* host, int port) {
     struct sockaddr_in serv_addr;
     if (port == 0) {
         port = 6041;
+        args.port = 6041;
     }
     if (NULL == host) {
         host = "localhost";
+        args.host = "localhost";
     }
 
     struct hostent *server = gethostbyname(host);

src/kit/shell/src/shellLinux.c

@@ -613,9 +613,11 @@ int tcpConnect(char* host, int port) {
     struct sockaddr_in serv_addr;
     if (port == 0) {
         port = 6041;
+        args.port = 6041;
     }
     if (NULL == host) {
         host = "localhost";
+        args.host = "localhost";
     }
 
     struct hostent *server = gethostbyname(host);

src/kit/shell/src/shellWindows.c

@@ -377,9 +377,11 @@ int tcpConnect(char* host, int iport) {
             hints;
     if (iport == 0) {
         iport = 6041;
+        args.port = 6041
     }
     if (NULL == host) {
         host = "localhost";
+        args.host = "localhost";
     }
     char port[10] = {0};