feat: add AGENTS.md and CLAUDE.md #6117

Job	Run time
check_format_and_unit_tests	1m 21s
build / Special integration tests (21)	2m 22s
build / Special integration tests (25)	2m 4s
build / Special integration tests (17)	2m 11s
build / httpclient-tests (vertx) / Integration tests (25, 1.32.0, vertx)	24m 49s
build / httpclient-tests (jetty) / Integration tests (25, 1.32.0, jetty)	25m 30s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	26m 18s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	24m 50s
build / httpclient-tests (jdk) / Integration tests (25, 1.32.0, jdk)	25m 47s
build / integration_tests (25, 1.32.4) / Integration tests (25, 1.32.4, vertx)	26m 13s
build / integration_tests (25, 1.31.8) / Integration tests (25, 1.31.8, vertx)	25m 55s
build / integration_tests (25, 1.30.12) / Integration tests (25, 1.30.12, vertx)	24m 14s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	25m 21s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	25m 15s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	26m 14s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	26m 15s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	24m 32s
build / integration_tests (25, 1.33.1) / Integration tests (25, 1.33.1, vertx)	26m 15s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	25m 42s
	6h 31m 8s

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