- __main__ is now a self-contained docopt CLI going straight to
backends.dispatch (no blake3/tracerite needed); 'oosetup' builds and
starts the bundled OnlyOffice container and prints
ONLYOFFICE_JWT_SECRET=<token> as its only stdout line
- dispatch: log a plain one-line error for missing-extra ImportErrors
instead of a traceback
- worker/pool: friendly install hints when the 'worker' extra is missing
- office: fix import on Python 3.11-3.13 without the 'office' extra
(lazy annotations); setup_docker returns the JWT secret used and
redacts it from the logged docker command
- add 'mediapreview' console script and docopt-ng dependency
LeoVasanko