fix: deep review improvements — bug fixes, docs, and test coverage

[samber]

• Fix README typos: undefined var err -> err1, .Tag() -> .Tags()
• Deep-copy tags in builder.copy() with slices.Clone to prevent shared-array bugs
• Add panic recovery to lazyValueEvaluation (produces descriptive string on panic)
• Replace lo.Assign with maps.Clone in builder.copy() (stdlib, idiomatic)
• Document all global config vars (AutoTraceID, DereferencePointers, Local) in README
• Document Wrapf + %w foot-gun behavior in README
• Add logrus formatter tests (was zero coverage)
• Add AsOops/AsError[T] helper tests
• Add Format %s/%q verb coverage
• Add benchmark suite for core operations

[Copilot]

Pull request overview

This PR improves correctness and robustness of the oops error builder/copy semantics, expands documentation around configuration and wrapping behavior, and adds missing tests/benchmarks (including coverage for the logrus formatter module).

Changes:

• Fix README examples/typos, document global config variables, and clarify Wrapf + %w behavior.
• Make OopsErrorBuilder.copy() safer by cloning tag slices and switching map copying to stdlib cloning; add panic recovery for lazy context evaluation.
• Add new tests (format verbs, AsOops/AsError[T], logrus formatter) and introduce a dedicated benchmarks module wired into go.work.

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
README.md	Fixes examples and expands documentation for config and wrapping behavior.
builder.go	Updates builder copy behavior to clone slices/maps using stdlib helpers.
kv.go	Adds panic recovery to lazy value evaluation.
oops_test.go	Adds %s/%q formatting coverage for OopsError.
helpers_test.go	Adds tests for AsOops and AsError[T].
go.work	Adds the new benchmarks module to the workspace.
loggers/logrus/go.mod	Adds test dependencies and changes how the root oops module is referenced.
loggers/logrus/go.sum	Updates module sums consistent with go.mod changes.
loggers/logrus/formatter_test.go	Introduces formatter tests to cover logrus integration.
benchmarks/go.mod	Adds a standalone module for benchmarks.
benchmarks/go.sum	Adds sums for benchmark module dependencies.
benchmarks/benchmark_test.go	Adds benchmark suite for core operations.

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[codecov]

Codecov Report

❌ Patch coverage is 56.52174% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.22%. Comparing base (13cd300) to head (dda53e3).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
builder.go	42.85%	5 Missing and 3 partials ⚠️
kv.go	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #107      +/-   ##
==========================================
+ Coverage   84.47%   87.22%   +2.75%     
==========================================
  Files          14       14              
  Lines        1037     1049      +12     
==========================================
+ Hits          876      915      +39     
+ Misses        135      104      -31     
- Partials       26       30       +4     

Flag	Coverage Δ
unittests	87.22% <56.52%> (+2.75%)	⬆️

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