Brick press: clay lumps into green bricks that fire into Bricks (t28)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/DESIGN.md

@@ -225,6 +225,18 @@ above, including:
   machines (Grinder 0.25 grains/tick, $60; Saw 0.5, $90). In a vertical stack only the top block
   takes input and the result passes down through the rest, so a Saw on a Grinder cuts stone and
   grinds everything else. Partial brick counts are not saved.
+  After the owner played it: the Refiner and Stone cutter code is gone (an old save that still has
+  one loads without it and refunds its price). Grinders draw as a pair of grinding wheels and
+  Saws as a round blade, turning while busy. The Saw also cuts wood chunks into Planks (2 build a
+  wood wall). Its stone output is now called a Stone block, so that only fired clay is a brick.
+  Items piling up under a block stay a thing to build around (a belt or an open drop), and the
+  Saw's text says so.
+
+- **Clay bricks come from a Brick press (t28, 2026-10-24).** A hopper block like the Saw: every
+  8 clay lumps on top become a Green brick below, and a Green brick fires into a Brick above about
+  900°C (any fire). 2 Bricks build a brick wall block; builders order them. The owner found it odd
+  that clay bricks (first planned as a mold) and stone bricks would be made in different ways, and
+  chose a press over a heated kiln block or a mold. Loose clay still fires into brick rubble.
 - **The bag is the vacuum's control panel (t6).** Each bag row has separate pick-up and blow
   marks; a chip on the tool card sets pick-up to everything, only marked, or the same as the
   first click; R over a grain toggles its pick-up mark. The owner found the shared ticks confusing.