Add Codex JSON sessions and usage limits

server/src/main.rs

@@ -42,7 +42,7 @@ use session::SessionManager;
 
 const DEFAULT_PORT: u16 = 8443;
 
-/// Serves AI coding sessions (Claude Code, llama.cpp) to the phone app.
+/// Serves AI coding sessions (Codex, Claude Code, llama.cpp) to the phone app.
 #[derive(Parser)]
 struct Args {
     /// TLS port for the whole API surface.