feat: add Milvus configuration options for index and metric types

backend/open_webui/config.py

@@ -1753,6 +1753,12 @@ MILVUS_URI = os.environ.get("MILVUS_URI", f"{DATA_DIR}/vector_db/milvus.db")
 MILVUS_DB = os.environ.get("MILVUS_DB", "default")
 MILVUS_TOKEN = os.environ.get("MILVUS_TOKEN", None)
 
+MILVUS_INDEX_TYPE = os.environ.get("MILVUS_INDEX_TYPE", "AUTOINDEX")
+MILVUS_METRIC_TYPE = os.environ.get("MILVUS_METRIC_TYPE", "COSINE")
+MILVUS_HNSW_M = int(os.environ.get("MILVUS_HNSW_M", "16"))
+MILVUS_HNSW_EFCONSTRUCTION = int(os.environ.get("MILVUS_HNSW_EFCONSTRUCTION", "100"))
+MILVUS_IVF_FLAT_NLIST = int(os.environ.get("MILVUS_IVF_FLAT_NLIST", "128"))
+
 # Qdrant
 QDRANT_URI = os.environ.get("QDRANT_URI", None)
 QDRANT_API_KEY = os.environ.get("QDRANT_API_KEY", None)