feat: NES portrait controller, remote input handler updates

- NESPortraitController layout for vertical phone use
- Updated NESController and NESKeyboard components
- Remote input WebSocket handler and API route registration

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

core/archipelago/src/api/handler/mod.rs

@@ -2,6 +2,7 @@ mod content;
 mod dwn;
 mod node_message;
 mod proxy;
+mod remote_input;
 mod websocket;
 
 use crate::api::rpc::RpcHandler;
@@ -140,6 +141,15 @@ impl ApiHandler {
             return Self::handle_websocket(req, self.state_manager.clone(), self.metrics_store.clone()).await;
         }
 
+        // Remote input WebSocket — companion app sends keyboard/mouse events
+        if method == Method::GET && path == "/ws/remote-input" {
+            if !self.is_authenticated(req.headers()).await {
+                tracing::warn!("401 WebSocket /ws/remote-input — session invalid or missing");
+                return Ok(Self::unauthorized());
+            }
+            return Self::handle_remote_input(req).await;
+        }
+
         // Convert body to bytes for non-WS routes
         let headers = req.headers().clone();
         let (parts, body) = req.into_parts();