🛠️ Phase C: SocketBox Arc<RwLock> + syntax fixes for multiple Box types

Co-authored-by: moe-charm <217100418+moe-charm@users.noreply.github.com>

src/boxes/debug_box.rs

@@ -377,14 +377,13 @@ impl NyashBox for DebugBox {
     }
     
     fn clone_box(&self) -> Box<dyn NyashBox> {
+        Box::new(self.clone())
+    }
     
     /// 仮実装: clone_boxと同じ（後で修正）
     fn share_box(&self) -> Box<dyn NyashBox> {
         self.clone_box()
     }
-
-        Box::new(self.clone())
-    }
     
     
 }