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>

agent/core/__init__.py

@@ -0,0 +1,18 @@
+"""Agent core package"""
+from .state import AgentState, Intent, ConversationState, create_initial_state
+from .llm import ZhipuLLMClient, get_llm_client, Message, LLMResponse
+from .graph import create_agent_graph, get_agent_graph, process_message
+
+__all__ = [
+    "AgentState",
+    "Intent",
+    "ConversationState",
+    "create_initial_state",
+    "ZhipuLLMClient",
+    "get_llm_client",
+    "Message",
+    "LLMResponse",
+    "create_agent_graph",
+    "get_agent_graph",
+    "process_message",
+]