Change github mcp to use remote server and stop exposing socket in docker

[m-y-mo]

No description provided.

[Copilot]

Pull Request Overview

This PR migrates the GitHub MCP server configuration from a Docker-based local setup to a remote server approach, while removing Docker socket exposure from the containerized environment.

• Updated GitHub MCP toolbox to use remote streamable server instead of local Docker container
• Removed Docker socket mounting from run scripts to improve security
• Fixed documentation to reflect the new remote server approach

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
toolboxes/github_official.yaml	Changed from stdio Docker command to streamable remote server configuration
taskflows/examples/example_large_list_result_iter.yaml	Updated agent reference from "echo" to "assistant"
docker/run.sh	Removed Docker socket volume mount for security
README.md	Updated documentation to remove Docker socket references and fix .env file path

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