feat(qwp): connect timeout, ingest callbacks, and lazy_connect (toler… #139

Job	Run time
Build, test & javadoc (JDK 8)	3m 21s
GLIBC floor guard (linux-aarch64)	1m 24s
Compile & javadoc smoke (JDK 25)	43s
GLIBC floor guard (linux-x86-64)	1m 12s
	6m 40s

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