ROOMS (src/assets/lc/rooms/<key>-c.webp, 1000x672 each) - nine rooms per generation, 3x3 sheet, 3:2
Reference image: tools/lc_art.py collage rooms_ref.png --grid 3x3 --size 1000x672 room1.jpg ... room9.jpg

Redraw this reference sheet as a sheet of nine clear-line comic-album panels: exactly nine equal landscape
panels in a 3 by 3 grid, in the same order and the same compositions as the nine reference photos, separated by
straight even white gutters, each panel framed by a thin black ink border. Each panel is the same room as its
reference photo, slightly widened, drawn as a calm interior in the evening with its lamps switched on; lamps glow
as flat pale-yellow shapes with a simple flat halo.
Row 1: (1) {ROOM 1 in a few words}; (2) {ROOM 2}; (3) {ROOM 3}.
Row 2: (4) {ROOM 4}; (5) {ROOM 5}; (6) {ROOM 6}.
Row 3: (7) {ROOM 7}; (8) {ROOM 8}; (9) {ROOM 9}.
{STYLE BLOCK}
Then: tools/lc_art.py slice sheet.png out/ --grid 3x3 --names k1,...,k9 --size 1000x672
      tools/lc_art.py fit out/k1.png k1-c.webp --size 1000x672 ; tools/lc_art.py ink out/k1.png k1-i.webp
