Render A-series sheets in landscape (√2:1), size them off a single
--sheet-base variable so A2/A3/A4 keep exact ISO ratios while leaving room
for labels (which now wrap). Load Playfair Display + Cutive Mono via the
coollabs fonts API: Playfair Display for headings, Cutive Mono for the board.
Encode the board as blocks of stacked-section columns (C1) and render it as
the ASCII-styled DOM grid (C2) with hover highlight and a select emit. Layout
mirrors the physical board (Client Satisfaction above Product Architecture;
Macroplan above Defect Visualisation, both left of Feature Kanban) and boxes
use true ISO 216 proportions (1:√2, each step up scaled by √2). Both views
render from the one definition; tests pin section presence, click, hover,
layout order, and a snapshot.
