feat(tenant): delegate tenant configuration #1206

Job	Run time
style / crystal-style	1m 35s
test / crystal: latest, MT: ☐, canary: ☐	1m 56s
test / 🚧 crystal: unstable, MT: ☐, canary: ☐	2m 3s
test / TODOs → GitHub Issues	0s
	5m 34s

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