shell: support Windows cmd /C; normalize date/time; allow all commands; add tests

.vscode/launch.json

@@ -33,6 +33,13 @@
             "env": {
                 "MESSAGE_CHANNEL": "feishu"
             }
+        },
+        {
+            "name": "Attach: ToolHost Process",
+            "type": "go",
+            "request": "attach",
+            "mode": "local",
+            "processId": "${command:pickProcess}"
         }
     ]
 }