HaHafeng
483c62fb6f
Major milestone: Successfully replaced Dify external service with PostgreSQL + pgvector RAG engine Backend changes: - Refactor ragService.ts: Remove dual-track mode, keep only pgvector - Refactor knowledgeBaseService.ts: Remove Dify creation logic - Refactor documentService.ts: Remove Dify upload/polling logic - DifyClient.ts: Convert to deprecated stub file (for legacy compatibility) - common/rag/index.ts: Update exports - common/rag/types.ts: Remove Dify types, keep generic RAG types - config/env.ts: Remove Dify configuration Frontend changes: - DashboardPage.tsx: Add delete knowledge base dropdown menu - KnowledgeBaseList.tsx: Enhance quota warning display - CreateKBDialog.tsx: Add quota exceeded modal with guidance - knowledgeBaseApi.ts: Add auth interceptor Documentation: - Update PKB module status guide (v2.3) - Update system status guide (v4.0) Performance metrics: - Single query latency: 2.5s - Single query cost: 0.0025 CNY - Cross-language accuracy improvement: +20.5% Remaining tasks: - OSS storage integration - pg_bigm extension installation Tested: End-to-end test passed (create KB -> upload doc -> vector search)
PKB - 个人知识库
模块代号： PKB (Personal Knowledge Base)
开发状态： ✅ 已完成
商业价值： ⭐⭐⭐
独立性： ⭐⭐⭐
📋 模块概述
个人知识库允许用户创建私人文献库，并基于库内文献进行AI问答（RAG）。
🎯 核心功能
已完成功能
- ✅ 知识库CRUD - 创建、查看、编辑、删除
- ✅ 文档上传 - PDF、Word、TXT、Markdown
- ✅ RAG问答 - 基于知识库内容问答
- ✅ @知识库引用 - 智能引用系统（100%准确溯源）
- ✅ 配额管理 - 每用户3个知识库，每库50个文档
📂 文档结构
PKB-个人知识库/
├── [AI对接] PKB快速上下文.md # ⏳ 待创建
├── 00-项目概述/
├── 01-设计文档/
└── README.md # ✅ 当前文档
🔗 依赖的通用能力
- LLM网关 - RAG问答
- 文档处理引擎 - 文档文本提取
- RAG引擎 - 向量检索
最后更新： 2025-11-06
维护人： 技术架构师