Redesign panels, add 11 card fixes, new icons and app surfaces

Panel fixes: tall card row_span, room tab styling, vacuum card
image+value, AC airflow labels, AC fan speed sections (auto 3-btn
+ manual 5-step slider), light subtitle fallback, curtain pane
dividers, dimmable light presets, LED panel brightness + reorder.

New assets: 34 ui-icons (climate modes, cover, effects, battery,
led-strip, switch states), 3 logos, 90 app surface PNGs, design
system specs (components, ux-mechanics, tokens).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tools/font-weights.py

@@ -10,7 +10,7 @@ directory = Path(sys.argv[1])
 font = TTFont(directory / "font.ttf")
 axes = {axis.axisTag for axis in font["fvar"].axes} if "fvar" in font else set()
 metrics = {}
-for weight in (350, 400, 450, 500, 550, 600, 650, 800):
+for weight in (350, 400, 450, 500, 550, 600, 650, 700, 800):
     for display in (False, True):
         values = {"wght": weight} if "wght" in axes else {}
         if "opsz" in axes: