改进

src/heurams/kernel/particles/nucleon.py

@@ -1,29 +1,29 @@
 class Nucleon:
     """原子核: 材料元数据"""
 
-    def __init__(self, ident: str, metadata: dict):
+    def __init__(self, ident: str, payload: dict):
         """初始化原子核 (记忆内容)
 
         Args:
             ident: 唯一标识符
-            metadata: 记忆内容信息
+            payload: 记忆内容信息
         """
-        self.metadata = metadata
+        self.payload = payload
         self.ident = ident
 
     def __getitem__(self, key):
         if key == "ident":
             return self.ident
-        if key in self.metadata:
-            return self.metadata[key]
+        if key in self.payload:
+            return self.payload[key]
         else:
-            raise KeyError(f"Key '{key}' not found in metadata.")
+            raise KeyError(f"Key '{key}' not found in payload.")
 
     def __iter__(self):
-        yield from self.metadata.keys()
+        yield from self.payload.keys()
 
     def __len__(self):
-        return len(self.metadata)
+        return len(self.payload)
 
     def __hash__(self):
         return hash(self.ident)