Initial commit: CRM AI Demo bridge + KB knowledge base + infrastructure

- Bridge server with LLM agent tool-use (search_kb, search_products, search_orders, search_inventory, escalate_human)
- pgvector RAG knowledge base (95 FAQ chunks)
- Auto opportunity creation in Twenty CRM
- Auto follow-up task workflow
- Chatwoot AgentBot integration (HMAC, webhook)
- Docker compose infrastructure (PG18, Redis 8.8, node24-alpine)
- Configuration templates (example files) - real secrets excluded via .gitignore

bridge/Dockerfile

@@ -0,0 +1,11 @@
+# Chatwoot -> LLM -> Twenty CRM 销售桥接
+# 纯 Node 内置模块 + sharp(图片缩放),需 Node 18+(内置 fetch / FormData / Blob)
+FROM node:24-alpine
+WORKDIR /app
+COPY package.json ./
+RUN npm install --omit=dev
+COPY server.js index_kb.js register_agent_bot.js ./
+COPY chatwoot.config.json llm.config.json twenty.config.json kb.config.json ./
+ENV PORT=4000
+EXPOSE 4000
+CMD ["node", "server.js"]