GHSA-2fmp-9rvw-hc96: Network-AI: Poisoned environment backup manifest allows arbitrary recursive deletion during backup pruning

Network-AI versions up to 5.12.1 have a vulnerability where the backup pruning feature trusts the `path` field from backup manifest files stored on disk without validating it. An attacker who can write to the backup manifest file can trick the `pruneBackups()` function into recursively deleting arbitrary files or directories on the system that the Network-AI process has access to, potentially causing data loss.