test: add deployment rollback tests (closes #71) #78

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clawbot хочет влить 1 коммит(ов) из feature/deployment-rollback-tests в main

Автор	SHA1	Сообщение	Дата
clawbot	3c1525d59e	test: add rollback error condition tests Add tests for Rollback method error paths: - No previous image available - Empty previous image string - App deployment lock held - App lock already acquired Relates to #71	2026-02-16 00:27:46 -08:00