refactor: rename to gpcommon

gpcommon/src/cmd/disconnect.rs

@@ -0,0 +1,15 @@
+use super::{Command, CommandContext, CommandError};
+use crate::ResponseData;
+use async_trait::async_trait;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct Disconnect;
+
+#[async_trait]
+impl Command for Disconnect {
+    async fn handle(&self, context: CommandContext) -> Result<ResponseData, CommandError> {
+        context.server_context.vpn().disconnect().await;
+        Ok(ResponseData::Empty)
+    }
+}