doc: add note about tt integrity check #5426
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Add note about tt integrity check
The integrity-check-period option works only in the tt + tarantool setup, where tt periodically verifies the integrity of the running instance. In TCM, this option is not used, as the component only uploads and verifies configuration signatures and does not interact directly with the database. Moreover, TCM cannot stop Tarantool execution in case of an integrity check failure — this behavior is specific to tt when Tarantool is started with the --integrity-check and --integrity-check-period options.