fix bug

docutranslate/glossary/glossary.py

@@ -1,5 +1,5 @@
 class Glossary:
-    def __init__(self,glossary_dict:dict[str:str]|None=None):
+    def __init__(self,glossary_dict:dict[str:str]=None):
         self.glossary_dict=glossary_dict
 
     def update(self,update_dict:dict[str:str]):
@@ -9,7 +9,8 @@ class Glossary:
 
     def append_system_prompt(self,text:str):
         prompt="\n以下为参考术语表:\n"
-        for src,dst in self.glossary_dict:
+        for src,dst in self.glossary_dict.items():
             if src in text:
                 prompt+=f"{src}=>{dst}\n"
         prompt+="术语表结束\n"
+        return prompt