Let the trailer's automatic fixes try more (priced: one more allowance grant).

autoFix is the AUTOMATIC FIXES: the approval quote carries an automatic-fix allowance for paid fixes beside the 480p render (autoFixAllowance), reserved with it — none for a cut with nothing a new take could redo (app captures, title cards) or a balance that holds only the render. FREE FIXES RUN WHATEVER THE ALLOWANCE: an app capture's narration the review hears off its picture is laid again on it (kind: retime, 0 credits), and a capture beat whose line is cut at the cut (or has no room to land on its press) keeps more of its recording (kind: stretch, 0 credits), and one whose picture goes blank for a frame at its start or end keeps a stretch that does not show it (kind: trim, 0 credits), and a unit whose narration is measured under the music has the music under it lowered (kind: duck, duckDb, 0 credits); free fixes run on a review that cleared the bar and after the rounds are run too. After the preview is stitched the engine watches it (video coverage) and retakes the shots the review flags — each new take told what the review saw, a shot at most twice, re-staged as a voice-over where the take rules allow — and renders flagged on-screen text again, inside the allowance; then it stitches and watches the preview again. It stops at a clean 480p preview (state: clean), when the allowance is spent (no_allowance when none was held), when the review flags nothing a fix can clear, or after maxRounds rounds (state: stopped, stopReason, stoppedBecause). state is waiting (first pass rendering), reviewing or fixing while it works — do not retake or finish then, just poll. allowanceCredits is the ceiling, drawnCredits what fixes took from it (each charged only when its take lands), heldCredits what is still reserved (released when it stops); rounds[] lists each round's fixes with why. When it stopped short, moreFixes (if not null) offers one more grant of credits (the more-fixes op, priced first); otherwise the writer finishes anyway. The 720p finish is always the writer's own approval.