By: Michael Lynch <git@mtlynch.io>
Rename remaining fsys variables to clearer names Finish the cleanup started in d60147a by replacing every remaining generic fsys variable with a name that says what the filesystem holds: sourceDirFS for the source-media directory read during resize/convert, and exportFS for the Tinybeans export filesystem. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>