feat: load cursor from data #1161

Job	Run time
format	15s
clippy-check	1m 14s
cargo-deny	28s
check-minimal	51s
coverage-tests	6h 0m 3s
coverage-main	1h 0m 47s
coverage-tests (server_system)	2h 0m 46s
Documentation on Github Pages	38s
coverage-tests (client_system)	6h 0m 3s
msrv	1m 57s
coverage-tests (client_system, server_system)	3h 0m 49s
	18h 7m 51s

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