fix(profiles): a Codex switch reaches running and new sessions

Codex >= 0.164 sends every request through a shared app-server daemon that
outlives its TUIs and keeps the login it started with, so writing a new
auth.json changed nothing: open sessions and even new ones stayed on the
old (out-of-quota) account. After a switch, restart that CODEX_HOME's
daemon when one runs; open TUIs reconnect to it on their own (verified on
0.164.0 with two keys). The response says so (following), and the toast
tells the user running sessions follow.

server/openapi-extra/tools-more.js

@@ -489,6 +489,11 @@ const paths = {
                 items: { type: "string" },
                 description: "Files the switch wrote.",
               },
+              following: {
+                type: "boolean",
+                description:
+                  "Codex: a running app-server daemon was restarted, so open and new sessions use the new login.",
+              },
             },
           },
           "Switched."