feat: add one off commands to app-server v2 (#7452)

codex-rs/app-server-protocol/src/protocol/common.rs

@@ -164,6 +164,12 @@ client_request_definitions! {
         response: v2::FeedbackUploadResponse,
     },
 
+    /// Execute a command (argv vector) under the server's sandbox.
+    OneOffCommandExec => "command/exec" {
+        params: v2::CommandExecParams,
+        response: v2::CommandExecResponse,
+    },
+
     ConfigRead => "config/read" {
         params: v2::ConfigReadParams,
         response: v2::ConfigReadResponse,