Rename hook

Author: stephen-riggs

src/murfey/client/context.py

@@ -51,7 +51,7 @@ def ensure_dcg_exists(
         session_file = metadata_source / "EpuSession.dm"
         for h in entry_points(group="murfey.hooks"):
             try:
-                if h.name == "get_epu_session":
+                if h.name == "get_epu_session_metadata":
                     h.load()(session_file, environment=environment)
             except Exception as e:
                 logger.warning(f"Get EPU session hook failed: {e}")