Initial work on stdio

[dcramer]

Implements a basic stdio wrapper (requiring SENTRY_AUTH_TOKEN locally).

This will still need a distro to get this into GA, but works against dev.

Refs GH-28

[codecov]

Codecov Report

Attention: Patch coverage is 8.06452% with 114 lines in your changes missing coverage. Please review.

Project coverage is 37.00%. Comparing base (5cb714a) to head (8f31eee).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/mcp/server.ts	2.63%	37 Missing ⚠️
src/mcp/tools.ts	18.18%	36 Missing ⚠️
src/mcp/start-stdio.ts	5.26%	18 Missing ⚠️
src/mcp/transports/cloudflare-worker.ts	0.00%	13 Missing ⚠️
src/mcp/transports/stdio.ts	0.00%	7 Missing ⚠️
src/index.ts	0.00%	2 Missing ⚠️
src/routes/auth.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
- Coverage   39.28%   37.00%   -2.28%     
==========================================
  Files           9       12       +3     
  Lines         807      862      +55     
  Branches       18       21       +3     
==========================================
+ Hits          317      319       +2     
- Misses        490      543      +53     

Flag	Coverage Δ
unittests	37.00% <8.06%> (-2.28%)	⬇️

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[dcramer]

Couldn't figure out how to get it working in Cursor, but I did verify in inspector that it works.

    "sentryDevStdio": {
      "command": "npm",
      "args": ["run", "start:stdio"],
      "env": {
        "PATH": "/Users/dcramer/code/sentry-mcp",
        "SENTRY_AUTH_TOKEN": ""
      }
    }