#263: The mandatory password change modal updated React state before
the browser stored the new JWT cookie, causing a race condition where
the auth context checked the session with the old (invalidated) token.
Replace the state update with a full page redirect to /admin/dashboard
after a brief delay, ensuring the new cookie is applied cleanly.
#269: The file watcher service imported isVideoMimeType from
fileSecurityUtils where it doesn't exist. The function is exported
from videoProcessor. Fix the import path.
Closes#269
Paul Nothaft
835bdf5abb