Skip auto-import when sync command is run with --dry-run flag to prevent
database modifications during dry-run mode. Previously, autoImportIfNewer()
would run in PersistentPreRun hook and modify the database even in dry-run,
causing the JSONL file to become dirty.
Amp-Thread-ID: https://ampcode.com/threads/T-1bc29344-0c59-4127-855d-860d1579ba0b
Co-authored-by: Amp <amp@ampcode.com>