feat: restore risk assessment workspace and improve page scrolling

backend/graph/memory_indexer.py

@@ -65,6 +65,9 @@ class MemoryIndexer:
             # 使用 HuggingFace 镜像加速模型下载
             if "HF_ENDPOINT" not in os.environ:
                 os.environ["HF_ENDPOINT"] = "https://hf-mirror.com"
+            # 离线加载已缓存的嵌入模型(避免启动时联网挂起阻塞)
+            os.environ.setdefault("HF_HUB_OFFLINE", "1")
+            os.environ.setdefault("TRANSFORMERS_OFFLINE", "1")
 
             Settings.embed_model = HuggingFaceEmbedding(
                 model_name=os.getenv("EMBEDDING_MODEL", "BAAI/bge-small-zh"),
@@ -112,6 +115,9 @@ class MemoryIndexer:
             # 使用 HuggingFace 镜像加速模型下载
             if "HF_ENDPOINT" not in os.environ:
                 os.environ["HF_ENDPOINT"] = "https://hf-mirror.com"
+            # 离线加载已缓存的嵌入模型(避免联网挂起阻塞)
+            os.environ.setdefault("HF_HUB_OFFLINE", "1")
+            os.environ.setdefault("TRANSFORMERS_OFFLINE", "1")
 
             Settings.embed_model = HuggingFaceEmbedding(
                 model_name=os.getenv("EMBEDDING_MODEL", "BAAI/bge-small-zh"),