feat: 添加 Strapi 配置文件支持

- 新增 config.yaml：集中管理 Strapi API 配置
- 新增 config_loader.py：配置加载模块
- 更新 http_routes.py：从配置文件读取 API 端点
- 支持从 YAML 文件配置 FAQ 分类和语言
- 更新 requirements.txt：添加 pyyaml 依赖

优势：
- 配置与代码分离，易于维护
- 添加新分类无需修改代码
- 支持热加载配置

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

mcp_servers/strapi_mcp/config.yaml

@@ -0,0 +1,97 @@
+# Strapi MCP 配置文件
+# 根据 docs/strapi.txt 中的接口定义配置
+
+strapi:
+  base_url: https://cms.yehwang.com
+  api_token: ""  # 留空表示不需要认证
+
+# 支持的语言
+languages:
+  - code: en
+    name: English
+  - code: nl
+    name: Nederlands
+  - code: de
+    name: Deutsch
+  - code: es
+    name: Español
+  - code: fr
+    name: Français
+  - code: it
+    name: Italiano
+  - code: tr
+    name: Türkçe
+
+# FAQ 分类配置
+faq_categories:
+  register:
+    endpoint: faq-register
+    description: 账号相关
+    keywords:
+      - account
+      - register
+      - login
+      - password
+
+  order:
+    endpoint: faq-order
+    description: 订单相关
+    keywords:
+      - order
+      - place order
+      - cancel order
+      - modify order
+
+  pre-order:
+    endpoint: faq-pre-order
+    description: 预售订单相关
+    keywords:
+      - pre-order
+      - reserve
+      - pre-sale
+
+  payment:
+    endpoint: faq-payment
+    description: 支付相关
+    keywords:
+      - payment
+      - pay
+      - checkout
+      - voucher
+      - discount
+
+  shipment:
+    endpoint: faq-shipment
+    description: 运输相关
+    keywords:
+      - shipping
+      - delivery
+      - transit
+      - courier
+
+  return:
+    endpoint: faq-return
+    description: 退货相关
+    keywords:
+      - return
+      - refund
+      - complaint
+      - defective
+
+  other:
+    endpoint: faq-other-question
+    description: 其他问题
+    keywords:
+      - other
+      - general
+
+# 公司信息端点
+info_sections:
+  contact:
+    endpoint: info-contact
+    description: 联系信息和营业时间
+
+# API 端点模板
+api_templates:
+  faq: "/api/{category}?populate=deep&locale={locale}"
+  info: "/api/{section}?populate=deep&locale={locale}"