The four clean-lift headers (SecurityHeadersInterceptor,
BodySizeLimitInterceptor, JsonErrorHandler, RateLimiter) were copied
verbatim in v0.1.0 and left in the global namespace — consumers that
adopt the library alongside existing same-named classes (e.g. fewo-webapp
during the #417 swap) would hit ODR clashes.
Wrap them in the same namespace the v0.2 auth seams use. Patch bump; no
API surface change beyond the qualifier.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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