Added a firm guide rule: drop a cassette activity ONLY to dissolve a
bare word-list or remove a true duplicate; keep every other. This cut
over-dropping sharply (book-4-lesson-3: 83 -> 6 dropped clips, all the
sanctioned word-list; book-1-lesson-2: 49 -> 22). Generated the Book-1
review ST images so book-1-lesson-5 can ship. All 10 masters now live.
Co-authored-by: Cursor <cursoragent@cursor.com>
Word-list intros now dissolved into sentence panels (3-1 leads with
sentences; 3A noun/verb word-drills dropped per the sanctioned
exception). 6 parts. NOTE: 3D Fig 5 "Classroom Rules" (20 clips) was
dropped by the model — flagged by the coverage check, left for review.
Co-authored-by: Cursor <cursoragent@cursor.com>
