fastiapi

基于 LangGraph 1.x 与 FastAPI 的智能贷款销售客服工作流。覆盖问题分类、多轮信息收集与确认、知识库 RAG 问答、双库并行产品推荐和客户转化；Milvus 稠密向量 + SPLADE 稀疏混合检索，支持 Word/PDF/Excel 上传分块；SSE 流式对话，SQLite Checkpoint 持久化会话，模型兼容通义千问与智谱。

Detects LLM prompt/model regressions before they ship — multi-provider eval, LLM-as-judge, drift monitoring, and CI/CD integration.

Hands-on NLP & RAG engineering curriculum — 14 modules from document loaders to agentic LangGraph systems. Covers chunking, embeddings, vector DBs, hybrid search, RAGAS evaluation, and production FastAPI deployment.