feat: add golang filter and mcp-server

[Jing-ze]

Ⅰ. Describe what this PR did

add golang filter

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[johnlanni]

LGTM

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.66%. Comparing base (ef31e09) to head (d69201e).
Report is 367 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1942      +/-   ##
==========================================
+ Coverage   35.91%   43.66%   +7.75%     
==========================================
  Files          69       78       +9     
  Lines       11576    12479     +903     
==========================================
+ Hits         4157     5449    +1292     
+ Misses       7104     6687     -417     
- Partials      315      343      +28     

see 73 files with indirect coverage changes

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