feat: add GitHub PR MCP server for remote merge requests

[Copilot]

Adds an MCP server to create pull requests on GitHub repositories directly from DeepChat.

Changes

• New MCP Server (githubPRServer.ts)

  • github_create_pull_request - Create PRs with title, body, head/base branches
  • github_list_repositories - List authenticated user's repos
  • github_list_branches - List branches for a repo
  • github_get_repository - Get repo details
  • github_list_pull_requests - List PRs for a repo

• Server Registration (builder.ts)

  • Registered as deepchat-inmemory/github-pr-server

• i18n - Added zh-CN and en-US translations

Usage

Configure with GitHub personal access token in the server's env.token:

// Example: Creating a PR via the MCP tool
{
  owner: "jasonwang82",
  repo: "deepchat", 
  title: "feat: new feature",
  head: "feature-branch",
  base: "main",
  draft: false
}

Security

• Uses token auth scheme per GitHub API docs
• API version pinned to 2022-11-28
• Error messages sanitized to prevent information disclosure

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• cdn.sheetjs.com
  • Triggering command: /usr/local/bin/node node /usr/local/bin/pnpm install (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

发起到远端的合并请求

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