--cron now sets Vaultik.Stdout to io.Discard so all user-facing output
is suppressed, not just the scanner progress. Errors still go to stderr
via the structured logger.
snapshot list now warns when local snapshot records have no matching
remote metadata, and suggests 'vaultik snapshot cleanup' instead of
silently deleting them.
snapshot cleanup is a new subcommand that explicitly removes stale
local snapshot records. syncWithRemote (used by purge) still does
this automatically since purge is already destructive.
.gitignore changed from 'vaultik' to '/vaultik' so it only matches
the binary at the repo root, not the internal/vaultik/ directory.
- Change all commands to use flags (--bucket, --prefix, etc.)
- Add --config flag to backup command
- Support VAULTIK_CONFIG environment variable for config path
- Use /etc/vaultik/config.yml as default config location
- Add test/config.yaml for testing
- Update tests to use environment variable for config path
- Add .gitignore for build artifacts and local configs
- Update documentation to reflect new CLI syntax
