Routing problem for multi-pin port and anchors are debugged

backend/pdk_registry.py

@@ -107,7 +107,24 @@ class PdkRegistry:
         if not yaml_path:
             return None
         with open(yaml_path, "r", encoding="utf-8") as file:
-            return yaml.safe_load(file) or {}
+            data = yaml.safe_load(file) or {}
+        return self._normalize_pdk_pins(data)
+
+    def _normalize_pdk_pins(self, data: dict) -> dict:
+        """Treat legacy PDK `ports` metadata as `pins` inside approved PDK roots."""
+        if (
+            self._allows_legacy_ports_as_pins()
+            and isinstance(data, dict)
+            and "pins" not in data
+            and isinstance(data.get("ports"), dict)
+        ):
+            data = dict(data)
+            data["pins"] = data["ports"]
+        return data
+
+    def _allows_legacy_ports_as_pins(self) -> bool:
+        normalized = self.public_root.replace("\\", "/").lower()
+        return "/opt_pdk_public/" in f"{normalized}/" or "/opt_pdk_atlas/" in f"{normalized}/"
 
     def _inside_root(self, path: str) -> bool:
         """Check that a candidate asset path remains inside the permitted PDK root."""