Rev 11: the maze has no wall at zero, and moving sectors carry everything

Relocate Sector could never land a sector west or north of the origin
— placements the physical game allows by simply sliding the whole map
across the table. The coordinate grid still cannot go negative, but
now it does not need to: a sector may land at negative coordinates
and the whole maze renormalizes, zero-anchoring on both axes (which
also pulls the maze snug when the origin corner is vacated, instead
of leaving a blank band). The client offers the new landings as ghost
slots on every side, verified slot-for-slot against engine truth.

The move also closes a real gap: remapState never carried creatures,
boobytrap tokens, glue, open safes, or dimensional warp tokens when a
sector relocated or rotated — they were left hovering at their old
coordinates. Sectors now carry everything standing on them. Both
changes ride rules rev 11; older ledgers replay their flaws intact,
as replay determinism demands.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

packages/web/src/App.svelte

@@ -151,7 +151,8 @@
         const k = `${c.x},${c.y}`;
         if (seen.has(k)) continue;
         seen.add(k);
-        if (c.x < 0 || c.y < 0) continue;
+        // Before rev 11 the grid stopped at zero; newer games renormalize.
+        if (view!.deckRev < 11 && (c.x < 0 || c.y < 0)) continue;
         if (origins.some((o) => o.x === c.x && o.y === c.y)) continue;
         const next = origins.map((o, j) => (j === idx ? c : o));
         if (next.every((o, j) => next.some((p, m) => m !== j && adjacent(o, p)))) out.push(c);