feat: Add MCP Proxy and Client in hono/mcp

[MathurAditya724]

The author should do the following, if applicable

• Add tests
• Run tests
• yarn changeset at the top of this repo and push the changeset
• Follow the contribution guide

[changeset-bot]

⚠️ No Changeset found

Latest commit: d09fa2b

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.24%. Comparing base (1d51a78) to head (d09fa2b).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1661      +/-   ##
==========================================
- Coverage   92.24%   92.24%   -0.01%     
==========================================
  Files         111      111              
  Lines        3661     3660       -1     
  Branches      971      971              
==========================================
- Hits         3377     3376       -1     
  Misses        250      250              
  Partials       34       34              

Flag	Coverage Δ
mcp	90.59% <ø> (-0.02%)	⬇️

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