feat: 初始化 B2B AI Shopping Assistant 项目

- 配置 Docker Compose 多服务编排
- 实现 Chatwoot + Agent 集成
- 配置 Strapi MCP 知识库
- 支持 7 种语言的 FAQ 系统
- 实现 LangGraph AI 工作流

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,44 @@
+# B2B Shopping AI Assistant Platform - Environment Variables
+
+# ============ AI Model ============
+ZHIPU_API_KEY=your_zhipu_api_key
+ZHIPU_MODEL=glm-4
+
+# ============ Redis ============
+REDIS_HOST=redis
+REDIS_PORT=6379
+REDIS_PASSWORD=your_redis_password
+REDIS_DB=0
+
+# ============ PostgreSQL (Chatwoot) ============
+POSTGRES_HOST=postgres
+POSTGRES_PORT=5432
+POSTGRES_DB=chatwoot
+POSTGRES_USER=chatwoot
+POSTGRES_PASSWORD=your_postgres_password
+
+# ============ Chatwoot ============
+CHATWOOT_API_URL=http://chatwoot:3000
+CHATWOOT_API_TOKEN=your_chatwoot_api_token
+CHATWOOT_WEBHOOK_SECRET=your_webhook_secret
+CHATWOOT_FRONTEND_URL=http://localhost:3000
+CHATWOOT_SECRET_KEY_BASE=your_secret_key_base
+
+# ============ Strapi CMS (FAQ/Knowledge Base) ============
+STRAPI_API_URL=http://your-strapi:1337
+STRAPI_API_TOKEN=your_strapi_api_token
+
+# ============ Hyperf PHP API ============
+HYPERF_API_URL=http://your-hyperf-api:9501
+HYPERF_API_TOKEN=your_hyperf_api_token
+
+# ============ MCP Servers ============
+STRAPI_MCP_URL=http://strapi_mcp:8001
+ORDER_MCP_URL=http://order_mcp:8002
+AFTERSALE_MCP_URL=http://aftersale_mcp:8003
+PRODUCT_MCP_URL=http://product_mcp:8004
+
+# ============ Agent Config ============
+LOG_LEVEL=INFO
+MAX_CONVERSATION_STEPS=10
+CONVERSATION_TIMEOUT=3600