Ilia Denisov 92a97c6c93 feat(vk): draft the VK community cover ...

Adds VK's own cover template (1920x768) and a self-contained generator that
renders an Эрудит board in perspective with ГРАМОТНОСТЬ / СОПЕРНИК /
ЭРУДИЦИЯ / УМ already played, in six art-direction variants for review.

The position is checked, not asserted: assertLegal re-reads the finished grid
and fails the build unless the centre is covered, every declared word is on the
board, and no maximal run of two or more letters is a word nobody played. All
four words are in the Эрудит dictionary and tile values come from
scrabble-solver rules.Erudit().

The camera has pitch only, so the perspective warp reduces to an exact
per-scanline remap of a flat texture; tile thickness is filled as 3D quads
between the board plane and the tile plane. skia-canvas is borrowed from the
render sidecar rather than installed a second time for a one-off asset build.

Composition respects the two VK keep-outs measured off the template: the top
130 px some clients crop, and the mobile avatar circle over the bottom-left —
which is why the default word arrangement keeps that corner empty.

2026-07-27 15:21:46 +02:00

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