W-4: team assignment (linguist/reviewer) stored on job at creation,
auto-assigned to all language QC states on first GET /language-qc
(lazy init via auto_assign_defaults)
L-3 WS: broadcast_to_job when reviewer opens VTT for editing;
QCDetail shows "User X is editing [lang]" banner (auto-clears 5s)
R-5: comment broadcast via broadcast_to_job on add_comment();
QCDetail invalidates comments query on language_qc_comment WS event
L-15: QCDetail subscribes to language_qc_assigned WS event →
refetches lang-qc data and shows toast
R-7: VttEditor gets onCuePlay prop; AD editor in QCDetail wires
handleAdCuePlay → switches to accessible video mode, seeks & plays
T-15: beforeunload warning in NewJob while upload is in progress
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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