fix(deps): update module golang.org/x/sys to v0.36.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
golang.org/x/sys	v0.35.0 -> v0.36.0

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Configuration

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.71%. Comparing base (1415b17) to head (679eba1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #575   +/-   ##
=======================================
  Coverage   86.71%   86.71%           
=======================================
  Files          12       12           
  Lines        2364     2364           
=======================================
  Hits         2050     2050           
  Misses        238      238           
  Partials       76       76           

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[claude]

Code Review: Update golang.org/x/sys to v0.36.0

✅ Overall Assessment: APPROVED

This is a standard dependency update from Renovate bot that looks safe to merge.

Code Quality & Best Practices

• ✅ Clean dependency update: Only modifies go.mod and go.sum files as expected
• ✅ Automated tooling: Generated by Renovate bot with proper semantic versioning
• ✅ Minimal surface area: Single dependency bump with clear scope

Compatibility Analysis

• ✅ Limited usage scope: The library only uses golang.org/x/sys for low-level socket operations in:
  • control_unix.go:10: Uses unix.SetsockoptInt() for SO_REUSEADDR and SO_REUSEPORT
  • control_windows.go:6: Uses windows.SetsockoptInt() for SO_REUSEADDR
• ✅ Stable APIs: The socket option functions used are stable syscall wrappers unlikely to have breaking changes
• ✅ Platform isolation: Platform-specific code is properly separated with build tags

Security Considerations

• ✅ Patch version update: v0.35.0 → v0.36.0 suggests bug fixes and security patches
• ✅ Trusted source: golang.org/x/sys is an official Go extended library
• ✅ No new attack surface: Update does not introduce new functionality

Testing Considerations

• ⚠️ Recommendation: Run the full test suite to verify socket operations still work correctly:
  go test -parallel 20 -v -race -coverprofile=coverage.txt -covermode=atomic ./...
• ✅ Low risk: The updated functions are well-tested system calls

Performance Impact

• ✅ Neutral to positive: Minor version updates typically include performance improvements
• ✅ No behavioral changes expected: Socket option setting should remain unchanged

Conclusion

This is a routine maintenance update that should be safe to merge. The limited and stable usage of golang.org/x/sys in this codebase minimizes risk. The dependency is only used for essential socket configuration that is unlikely to change behavior.

Recommendation: ✅ APPROVE and MERGE after CI passes.