🧹 Address PR review: fix hardcoded defaults and disk region URL #16213

Job	Run time
go-mod	31s
go-test-integration	39s
go-test	3m 23s
go-race	50s
Store event file	5s
golangci-lint	1m 46s
golangci-lint-providers / lint	2m 35s
go-auto-approve	-1s
	9m 48s

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