feat(cat-gateway): Catalyst signed docs endpoints initial implementation #6160

Job	Run time
ci / discover	32s
ci / check / .+check-markdown	1m 17s
ci / check / .+check-spelling	1m 28s
ci / check / .+check-sqlfluff	1m 21s
ci / check / ./catalyst-gateway+check	57s
ci / check / ./catalyst-gateway+check-builder-src-cache	50s
ci / check / ./catalyst_voices+check-code-formatting	38s
ci / check / ./catalyst_voices+check-license	39s
ci / check / ./catalyst_voices+check-package-publishing	36s
ci / check / ./catalyst_voices+check-static-analysis	4m 3s
ci / check / ./catalyst_voices/packages/libs/catalyst_key_derivation/rust+check	39s
ci / check / ./utilities/wallet-tester+check	25s
ci / build	0s
ci / package	0s
ci / test	0s
ci / release	0s
ci / docs	0s
ci / final	2s
ci / deploy	0s
test_reporting / Generate test reports	6m 44s
test_reporting / Generate coverage report	1s
test_reporting / Generate allure report	1s
test_reporting / Upload coverage report	2s
	20m 15s

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