Function sync_remote_policy 

pub fn sync_remote_policy() -> Result<(), Error>

Synchronizes the remote security policy if configured in system config.yaml.

This allows organizations to manage security constraints (allowed/denied lists) centrally. It verifies the policy’s PGP signature before caching it locally.

Errors

Returns an error if:

• The configuration cannot be read.
• The system is in offline mode and a sync is required.
• The remote policy or its signature cannot be downloaded.
• The signature verification fails.