feat: add TraceIgnoreStatusCodes option

[giortzisg]

Description

Add client option for ignoring traces with specific status codes.

Issues

• Closes GO-80
• Closes Add option to exclude certain HTTP statuses from tracing in SDK #1087

---

Note

Adds a client option to ignore tracing for specified HTTP status codes or ranges, with implementation, tests, and an example.

• API:
  • Add ClientOptions.TraceIgnoreStatusCodes [][]int to configure status codes/ranges to exclude from tracing.
• Tracing:
  • Implement Span.shouldIgnoreStatusCode() to set SampledFalse and drop transactions when Data["http.response.status_code"] matches configured codes/ranges.
  • Early-return in Span.doFinish() when ignored.
• Tests:
  • Add comprehensive cases in client_test.go covering empty/missing status, single codes, ranges, mixed lists, and non-int values.
• Examples:
  • Add _examples/trace-ignore-status-codes/main.go demonstrating configuration and behavior.

^{Written by Cursor Bugbot for commit efb82ec. This will update automatically on new commits. Configure here.}

[linear]

GO-81 Change default behavior to stop tracing 404s unless explicitly enabled

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.90%. Comparing base (b07461a) to head (efb82ec).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
tracing.go	88.88%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1089      +/-   ##
==========================================
- Coverage   86.97%   86.90%   -0.07%     
==========================================
  Files          55       56       +1     
  Lines        6025     6072      +47     
==========================================
+ Hits         5240     5277      +37     
- Misses        641      649       +8     
- Partials      144      146       +2     

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[linear]

GO-80 Add option to exclude certain HTTP statuses from tracing in SDK

[lcian]

Implementation looks good to me.

[giortzisg]

Going with the span attribute solution in the end, to adhere to getsentry/sentry-docs#15026

[cleptric]

Missing the debug log from the spec.

[cleptric]

Please also add the new option to https://docs.sentry.io/platforms/go/configuration/options/ and https://docs.sentry.io/platforms/go/configuration/filtering/.