chore: update gitignore; feat: 新增customer_agent业务模块与api路由

rag/milvus_delete.py

@@ -0,0 +1,19 @@
+"""Milvus knowledge-document deletion helpers."""
+from __future__ import annotations
+
+from rag.milvus_collections import KNOWLEDGE_COLLECTIONS
+from config.database.milvus import client as configured_milvus_client
+
+
+def _escape_filter_value(value: str) -> str:
+    return value.replace("\\", "\\\\").replace('"', '\\"')
+
+
+async def delete_document_vectors(doc_id: str, *, milvus_client=None) -> None:
+    """Delete every knowledge chunk with ``doc_id`` from project collections."""
+    if not doc_id or not doc_id.strip():
+        raise ValueError("doc_id must not be empty")
+    client = milvus_client or configured_milvus_client()
+    expression = f'doc_id == "{_escape_filter_value(doc_id)}"'
+    for collection_name in KNOWLEDGE_COLLECTIONS:
+        await client.delete(collection_name=collection_name, filter=expression)