New inline --duoUser felt (sibling of CAST SKY / DRAW SEA) that opens on
#id_seed_map_btn once the 6-card sea hand completes (hand_complete); paints a
Voronoi cell layer (territory) + a Delaunay edge layer (adjacency) from
PLACEHOLDER seeds. Card-driven seeding (the 6 Celtic-Cross cards) is Step 2.
- voronoi-map.js: window.SeedMap.draw/drawPlaceholder/clear over the bundled
d3.min.js (d3-delaunay ships in the v7.9.0 UMD bundle — no new dep); a
ResizeObserver re-tessellates to fill the felt on resize; data-seed reads d3's
ring.index (survives skipped/degenerate cells in Step 2)
- _seed_map_overlay.html felt + room.html include + has-seed-stage (gated on hand_complete)
- three-way felt close (T3): openSeed closes sky+sea; openSky/openSea reciprocally close seed
- .room-menu-seed gear NVM pane + room-views.js seed-open branch
- _sky.scss felt block (T1: no aperture-fill light; T2: chained selector; fills the pane) + _room.scss aperture pin
- VoronoiMapSpec Jasmine + game_room_seed_map FT + 5 felt ITs; CarteTray NVM count 2->3
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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