v0.25.1

Fixed

• Critical no_std compilation bug when default features are disabled (#326, #327)
  • Added missing String import in builder.rs
  • Added missing Box import in introspection.rs
  • Added missing ToString import in display.rs

Improved

• Comprehensive no_std matrix testing in CI (#328, #329)
  • Added 6 parallel test configurations: bare, std, tracing, metrics, colored, all
  • Separate cache for each configuration
  • Prevents future no_std regressions

Build

• Fixed Auto Release workflow rebase issue

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Full Changelog: v0.25.0...v0.25.1