# 对外 API：删除知识库（全量级联清理）
# POST /rag/api/kb_delete.dspy   认证：cookie 会话或 Authorization: Bearer <dapi key>，RBAC logined 把关
# body/query: {kb_id}
from rag import api_core as C
_ns = await C.read_json_body(request, params_kw)
env = C.session_env(request)
return await C.kb_delete(env, _ns)