refactor: 客服agent的切片结构调整重构

rag/embedding.py

@@ -3,11 +3,13 @@ from __future__ import annotations
 
 import logging
 
+from config.settings import settings
 from tool.llm import llm
 
 
 logger = logging.getLogger("rag.embedding")
-EMBEDDING_DIMENSION = 768
+# 单一来源：.env 的 LLM_EMBED_DIMENSIONS；Milvus 建表、入库校验、embeddings 请求参数均以此为准
+EMBEDDING_DIMENSION = settings.llm.embed_dimensions
 
 
 class EmbeddingError(RuntimeError):