refine manul parser (#131)

api/apps/conversation_app.py

@@ -274,6 +274,8 @@ def use_sql(question, field_map, tenant_id, chat_mdl):
         return retrievaler.sql_retrieval(sql, format="json"), sql
 
     tbl, sql = get_table()
+    if tbl is None:
+        return None, None
     if tbl.get("error") and tried_times <= 2:
         user_promt = """
         表名：{}；

api/apps/llm_app.py

@@ -107,7 +107,7 @@ def list():
         llms = LLMService.get_all()
         llms = [m.to_dict() for m in llms if m.status == StatusEnum.VALID.value]
         for m in llms:
-            m["available"] = m["fid"] in facts
+            m["available"] = m["fid"] in facts or m["llm_name"].lower() == "flag-embedding"
 
         res = {}
         for m in llms: