Add Wall-X serving and Turtle2 TCP WebSocket bridge

wall_x/trainer/adapters/base_adapter.py

@@ -94,6 +94,10 @@ class ModelAdapter(ABC):
         """Load pretrained weights, resize embeddings, set normalizers, etc."""
         ...
 
+    def finalize_model_after_weight_load(self, model, model_config):
+        """Apply wrappers that must be created after loading base model weights."""
+        return model
+
     # ---- FSDP wrapping ----
     @abstractmethod
     def get_transformer_layer_cls(self):