) * refactor: consolidate globals into config struct, split interceptors.go Replace 34+ scattered package-level vars with a single interceptorConfig struct (defaultConfig). Split 936-line interceptors.go into 8 feature files: - config.go: interceptorConfig struct, defaults, all Set*() functions - filter.go: FilterMethods, filterState, FilterMethodsFunc - server.go: all server interceptors (timeout, logging, tracing, etc.) - client.go: all client interceptors (hystrix, newrelic, retry) - chain.go: interceptor chain helpers - http.go: DoHTTPtoGRPC, NRHttpTracer - metrics.go: Prometheus metrics setup - ratelimit.go: rate limiting interceptor Zero public API changes. All Set*() functions now assign to defaultConfig fields. resetGlobals() test helper simplified. * refactor: extract newDefaultConfig() to avoid duplicating defaults in resetGlobals() * docs: regenerate README.md via gomarkdoc * fix: reset all sync.Once singletons in resetGlobals() * fix: use %v for panic values, fix SetClientMetricsOptions doc comment * fix: add PanicRecoveryStreamInterceptor, fix stream context wrapping - Add PanicRecoveryStreamInterceptor to default stream chain — stream handler panics were previously uncaught, crashing the server - Fix ServerErrorStreamInterceptor: wrap stream with updated context from SetTraceIdWithValue so downstream handlers see the trace ID - Add wrappedStream helper for context override - Regenerate README Follow-up issues created for remaining pre-existing items: - #41 FilterMethods stale cache - #42 NRHttpTracer filter bypass - #43 registerCollector pattern - #44 protovalidate silent fallback * test: add tests for PanicRecoveryStreamInterceptor and ServerErrorStreamInterceptor - PanicRecoveryStreamInterceptor: no-panic, string panic, error panic - ServerErrorStreamInterceptor: context wrapping, error propagation - DefaultStreamInterceptors: verify panic recovery is in the chain

registerCollector: Unregister/re-Register pattern may drop metrics #43

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