feat: 增强 Agent 系统和完善项目结构

主要改进:
- Agent 增强: 订单查询、售后支持、客服路由等功能优化
- 新增语言检测和 Token 管理模块
- 改进 Chatwoot webhook 处理和用户标识
- MCP 服务器增强: 订单 MCP 和 Strapi MCP 功能扩展
- 新增商城客户端、知识库、缓存和同步模块
- 添加多语言提示词系统 (YAML)
- 完善项目结构: 整理文档、脚本和测试文件
- 新增调试和测试工具脚本

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

tests/test_all_faq.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+# 测试所有 FAQ 分类
+
+echo "=========================================="
+echo "🧪 测试所有 FAQ 分类"
+echo "=========================================="
+echo ""
+
+# 定义测试用例
+declare -A TEST_CASES=(
+    ["订单相关"]="How do I place an order?"
+    ["支付相关"]="What payment methods do you accept?"
+    ["运输相关"]="What are the shipping options?"
+    ["退货相关"]="I received a defective item, what should I do?"
+    ["账号相关"]="I forgot my password, now what?"
+    ["营业时间"]="What are your opening hours?"
+)
+
+# 测试每个分类
+for category in "${!TEST_CASES[@]}"; do
+    question="${TEST_CASES[$category]}"
+    conv_id="test_${category}___$(date +%s)"
+
+    echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+    echo "📋 分类: $category"
+    echo "📝 问题: $question"
+    echo "⏳ 处理中..."
+    echo ""
+
+    # 调用 API
+    RESPONSE=$(docker exec ai_agent curl -s -X POST 'http://localhost:8000/api/agent/query' \
+        -H 'Content-Type: application/json' \
+        -d "{\"conversation_id\":\"$conv_id\",\"user_id\":\"test_user\",\"account_id\":\"2\",\"message\":\"$question\"}")
+
+    # 解析并显示结果
+    echo "$RESPONSE" | python3 << PYTHON
+import json
+import sys
+
+try:
+    data = json.load(sys.stdin)
+
+    # 提取响应
+    response = data.get("response", "")
+    intent = data.get("intent", "")
+
+    if response:
+        # 清理 HTML 标签（如果有）
+        import re
+        clean_response = re.sub(r'<[^<]+?>', '', response)
+        clean_response = clean_response.strip()
+
+        # 截断过长响应
+        if len(clean_response) > 300:
+            clean_response = clean_response[:300] + "..."
+
+        print(f"🎯 意图: {intent}")
+        print(f"🤖 回答: {clean_response}")
+    else:
+        print("❌ 未获得回答")
+        print(f"调试信息: {json.dumps(data, indent=2, ensure_ascii=False)}")
+
+except Exception as e:
+    print(f"❌ 解析错误: {e}")
+    print(f"原始响应: {sys.stdin.read()}")
+PYTHON
+
+    echo ""
+    sleep 2  # 间隔 2 秒
+done
+
+echo "=========================================="
+echo "✅ 所有测试完成"
+echo "=========================================="