Improvements:
[cloud] cloud and azure fixes and improvements
[cloud] add apt sources validation for azure
[cloud] add validation checks before cloud cleanup
[ssl] safer handling of Let’s Encrypt path
Bugfixes:
[system] fix supportsave syntax error
[cloud] azure cluster fix API integration
[cloud] cluster fix azure delete vip cli command
[system] fix load of http proxy environment variables
[system] fix CRL file migration from v6
[system] vulnerabilities solved: CVE-2024-56406, CVE-2025-46836, CVE-2025-0938, CVE-2025-1390, CVE-2025-4207, CVE-2023-4641, CVE-2024-26462, CVE-2023-4039, CVE-2025-32728, CVE-2024-13176, CVE-2025-3360, CVE-2023-29383, CVE-2025-1795, CVE-2025-24528