[HOTFIX] Fix the bug and simplify the MCP example

[DavdGao]

AgentScope Version

1.0.2

Description

Fix the bug in MCP example

Checklist

Please check the following items before code is ready to be reviewed.

• Code has been formatted with pre-commit run --all-files command
• All tests are passing
• Docstrings are in Google style
• Related documentation has been updated (e.g. links, examples, etc.)
• Code is ready for review

[Copilot]

Pull Request Overview

This PR fixes bugs and simplifies the MCP (Model Control Protocol) example in AgentScope by restructuring the code organization and correcting URL endpoints.

• Moves MCP example from agent_with_mcp to mcp directory with cleaner structure
• Separates MCP servers into individual files for better modularity
• Updates URL endpoints and transport configurations to fix connection issues

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
examples/functionality/mcp/mcp_multiply.py	New MCP server for multiplication operations using streamable-http transport
examples/functionality/mcp/mcp_add.py	New MCP server for addition operations using SSE transport
examples/functionality/mcp/main.py	Refactored main example with corrected URLs and simplified client setup
examples/functionality/mcp/README.md	New documentation explaining the MCP example setup and usage
README_zh.md	Updated link to point to new MCP example location
README.md	Updated link to point to new MCP example location

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