Add CLAUDE.md #5169

Job	Run time
system-test (sentry-samples-spring-boot, false, true)	3m 11s
system-test (sentry-samples-spring-boot-opentelemetry, true, false)	5m 9s
system-test (sentry-samples-spring-boot-opentelemetry-noagent, false, true)	5m 14s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, true)	5m 19s
system-test (sentry-samples-spring-boot-opentelemetry, true, true)	5m 22s
system-test (sentry-samples-spring-boot-webflux, false, true)	2m 57s
system-test (sentry-samples-console, false, true)	1m 20s
system-test (sentry-samples-jul, false, true)	1m 25s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry, true, false)	5m 30s
system-test (sentry-samples-spring-boot-4, false, true)	2m 54s
system-test (sentry-samples-spring-boot-jakarta, false, true)	2m 53s
system-test (sentry-samples-logback, false, true)	1m 25s
system-test (sentry-samples-log4j2, false, true)	1m 22s
system-test (sentry-samples-spring-boot-webflux-jakarta, false, true)	2m 47s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, true)	5m 48s
system-test (sentry-samples-spring-boot-jakarta-opentelemetry-noagent, false, true)	5m 32s
system-test (sentry-samples-spring-boot-4-webflux, false, true)	2m 37s
system-test (sentry-samples-spring-boot-4-opentelemetry, true, false)	5m 41s
system-test (sentry-samples-spring-jakarta, false, true)	2m 10s
	1h 8m 36s

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