Add shelves page to game library; refresh bggpipe export

Port the export's physical shelf layout (.wall/.orow/.ocell) into the
scoped embed.css so /mygames/?g=shelves renders the wall in true
proportions, using the cream board color and accent-purple links for
legibility on the dark theme. Includes a fresh bggpipe re-export (new
Etherfields and Red Dragon Inn titles, updated art). embed.js/embed.css
are untouched by the export.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

static/games/the-cat-game/index.html

@@ -24,7 +24,7 @@ The meow-ment is here: introducing The Cat Game – a hiss-terical drawing game
 
 For individual play, select a card from CATegories like fLICKS (movies), PURRsons & PURRfessions (famous people, characters or job titles) or CAT-tivities (actions). Use the erasable drawing board to sketch out each clue – with one cat-veat: you must use a cut-out of a furry feline in each drawing! The first player to guess five clues wins!
 
-For large groups, the stakes are raised! Two teams simultaneously battle it out, sketching cat-centric clues in a race to collect 20 points. Only now, players can claw back extra points by guessing the opposing teams clues as well! The fur may fly but fun will definitely be had once you get your paws on The Cat Game!</div>
+For large groups, the stakes are raised! Two teams simultaneously battle it out, sketching cat-centric clues in a race to collect 20 points. Only now, players can claw back extra points by guessing the opposing teams clues as well! The fur may fly but fun will definitely be had once you get your paws on The Cat Game!</div><div class="card"><div class="factrow"><b>where it lives</b> Library Kallax · A2</div></div>
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   <p>The Game Shelves · cataloged from shelf photos by