backend: Add `destroy_object` method #1195

Job	Run time
clippy-check	1m 7s
cargo-deny	27s
format	26s
Documentation on Github Pages	37s
check-minimal	46s
coverage-main	1m 43s
coverage-tests	1m 50s
msrv	2m 48s
coverage-tests (server_system)	1m 52s
coverage-tests (client_system)	1m 39s
coverage-tests (client_system, server_system)	2m 5s
	15m 20s

Provide feedback