Merge pull request #1791 from AstrBotDevs/feat-dify-user-param

Feature: supports dify user param

astrbot/core/provider/sources/dify_source.py

@@ -70,6 +70,7 @@ class ProviderDify(Provider):
         if image_urls is None:
             image_urls = []
         result = ""
+        session_id = session_id or kwargs.get("user") # 1734
         conversation_id = self.conversation_ids.get(session_id, "")
 
         files_payload = []