feat: add mcp-servers/**

mcp-servers/text-to-graphql/.env.example

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+# MCP Text to GraphQL Server Configuration
+# ========================================
+
+# MCP Service
+MCP_TEXT_TO_GRAPHQL_VERSION=latest
+MCP_TEXT_TO_GRAPHQL_PORT_OVERRIDE=8000
+
+# Timezone
+TZ=UTC

mcp-servers/text-to-graphql/README.md

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+# Text to GraphQL MCP Server
+
+Text to GraphQL MCP Server converts natural language text descriptions into GraphQL queries through the Model Context Protocol.
+
+## Features
+
+- 📝 **Text Parsing** - Parse text descriptions
+- 🔄 **Query Generation** - Generate GraphQL queries from text
+- 🔗 **API Integration** - Integrate with GraphQL APIs
+- 🎯 **Query Optimization** - Optimize generated queries
+
+## Environment Variables
+
+| Variable                            | Default  | Description                       |
+| ----------------------------------- | -------- | --------------------------------- |
+| `MCP_TEXT_TO_GRAPHQL_VERSION`       | `latest` | MCP Text to GraphQL image version |
+| `MCP_TEXT_TO_GRAPHQL_PORT_OVERRIDE` | `8000`   | MCP service port                  |
+| `TZ`                                | `UTC`    | Timezone                          |
+
+## Quick Start
+
+```bash
+docker compose up -d
+```

mcp-servers/text-to-graphql/README.zh.md

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+# Text to GraphQL MCP 服务器
+
+Text to GraphQL MCP 服务器通过 Model Context Protocol 将自然语言文本描述转换为 GraphQL 查询。
+
+## 功能特性
+
+- 📝 **文本解析** - 解析文本描述
+- 🔄 **查询生成** - 从文本生成 GraphQL 查询
+- 🔗 **API 集成** - 与 GraphQL API 集成
+- 🎯 **查询优化** - 优化生成的查询
+
+## 环境变量
+
+| 变量                                | 默认值   | 说明                         |
+| ----------------------------------- | -------- | ---------------------------- |
+| `MCP_TEXT_TO_GRAPHQL_VERSION`       | `latest` | MCP Text to GraphQL 镜像版本 |
+| `MCP_TEXT_TO_GRAPHQL_PORT_OVERRIDE` | `8000`   | MCP 服务端口                 |
+| `TZ`                                | `UTC`    | 时区                         |
+
+## 快速开始
+
+```bash
+docker compose up -d
+```

mcp-servers/text-to-graphql/docker-compose.yaml

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+x-default: &default
+  restart: unless-stopped
+  logging:
+    driver: json-file
+    options:
+      max-size: 100m
+      max-file: "3"
+
+services:
+  mcp-text-to-graphql:
+    <<: *default
+    image: mcp/text-to-graphql:${MCP_TEXT_TO_GRAPHQL_VERSION:-latest}
+    environment:
+      - MCP_HOST=0.0.0.0
+      - TZ=${TZ:-UTC}
+    ports:
+      - "${MCP_TEXT_TO_GRAPHQL_PORT_OVERRIDE:-8000}:8000"
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "-q", "http://localhost:8000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+    deploy:
+      resources:
+        limits:
+          cpus: '1.00'
+          memory: 512M
+        reservations:
+          cpus: '0.25'
+          memory: 128M