docs: Add detailed instructions for encrypted backups #359

Job	Run time
Security & Code Quality	1m 25s
Test Suite	46s
Build & Performance	5m 27s
Database Tests	1m 1s
Enhanced Security Testing	5m 7s
Deploy to Production	0s
Deploy to Staging	0s
Rollback on Failure	0s
Performance Monitoring (Staging)	0s
Performance Monitoring	0s
	13m 46s

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