fix SILICONFLOW rerank error (#2980)

### What problem does this PR solve?

#2977

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/chunk_app.py

@@ -320,9 +320,28 @@ def knowledge_graph():
     for id in sres.ids[:2]:
         ty = sres.field[id]["knowledge_graph_kwd"]
         try:
-            obj[ty] = json.loads(sres.field[id]["content_with_weight"])
+            content_json = json.loads(sres.field[id]["content_with_weight"])
         except Exception as e:
-            print(traceback.format_exc(), flush=True)
+            continue
+
+        if ty == 'mind_map':
+            node_dict = {}
+
+            def repeat_deal(content_json, node_dict):
+                if 'id' in content_json:
+                    if content_json['id'] in node_dict:
+                        node_name = content_json['id']
+                        content_json['id'] += f"({node_dict[content_json['id']]})"
+                        node_dict[node_name] += 1
+                    else:
+                        node_dict[content_json['id']] = 1
+                if 'children' in content_json and content_json['children']:
+                    for item in content_json['children']:
+                        repeat_deal(item, node_dict)
+
+            repeat_deal(content_json, node_dict)
+
+        obj[ty] = content_json
 
     return get_json_result(data=obj)
 

rag/llm/rerank_model.py

@@ -344,6 +344,9 @@ def similarity(self, query: str, texts: list):
             self.base_url, json=payload, headers=self.headers
         ).json()
         rank = np.zeros(len(texts), dtype=float)
+        if "results" not in response:
+            return rank, 0
+
         for d in response["results"]:
             rank[d["index"]] = d["relevance_score"]
         return (