feat: Added MCP Proxy

[MathurAditya724]

This adds MCP Proxy to the package. This is great for debugging, MCP inspectors, and also check what things are being passed to or getting from the MCP, that way if they wanna flag or remove details

[changeset-bot]

🦋 Changeset detected

Latest commit: 1020fe2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@hono/mcp	Patch

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[codecov]

Codecov Report

❌ Patch coverage is 81.57895% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.00%. Comparing base (ed03ec6) to head (cc98b12).

Files with missing lines	Patch %	Lines
packages/mcp/src/proxy.ts	81.57%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1661      +/-   ##
==========================================
- Coverage   92.11%   92.00%   -0.11%     
==========================================
  Files         111      112       +1     
  Lines        3678     3715      +37     
  Branches      960      965       +5     
==========================================
+ Hits         3388     3418      +30     
- Misses        255      262       +7     
  Partials       35       35              

Flag	Coverage Δ
mcp	90.01% <81.57%> (-0.50%)	⬇️

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