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

infra/init-db.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+# 共享 postgres 初始化：创建分库 + 在需要的库启用 pgvector 扩展
+set -e
+set -u
+
+echo "[init-db] 创建分库: chatwoot, twenty, products"
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
+    CREATE DATABASE chatwoot;
+    CREATE DATABASE twenty;
+    CREATE DATABASE products;
+EOSQL
+
+echo "[init-db] 在 chatwoot / products 库启用 pgvector 扩展"
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -d chatwoot <<-EOSQL
+    CREATE EXTENSION IF NOT EXISTS vector;
+EOSQL
+
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -d products <<-EOSQL
+    CREATE EXTENSION IF NOT EXISTS vector;
+EOSQL
+
+echo "[init-db] 完成。库列表："
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" -c "\l"