Breed at the Day-Care, hatch Eggs, draw MAIL stationery and browse the Hall of Fame (Closes #29)

- Day-Care and breeding: deposits, withdrawal pricing and growth,
  compatibility, egg species, DVs and moves, DayCareStep, egg
  collection and the Odd Egg, compared with the cartridge's routines.
- CountStep: walking happiness, DoEggStep, DayCareStep and DoBikeStep
  in the original's order; HatchEggs with the ROM's hatch animation,
  compared frame by frame with the original.
- MAIL: all ten stationery types and the Portrait MAIL picture,
  compared with the cartridge's tilemaps, graphics and palettes.
- Printing: Bill's PC boxes, Pokedex PRNT, MAIL and the Photo Studio
  take the original's absent-printer path.
- Hall of Fame records (saved apart from the League flag, ready for the
  League to call) and the Hall of Fame PC, compared with the cartridge's
  _HallOfFamePC on 255 pages.

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

tests/world-driver.ts

@@ -20,6 +20,10 @@ export function settle(
     if (dialogue) {
       const page = dialogue.pages[dialogue.index];
       const last = dialogue.index === dialogue.pages.length - 1;
+      if (last && dialogue.choice?.kind === "screen" && dialogue.choice.realtime) {
+        world.tick();
+        continue;
+      }
       if (last && dialogue.choice) {
         shown.push(page);
         // The naming screen waits for the caller unless a name is queued.
@@ -28,6 +32,12 @@ export function settle(
           world.choose(answers.shift()!);
           continue;
         }
+        if (dialogue.choice.kind === "screen") {
+          shown.push(dialogue.choice.screen.label);
+          if (typeof answers[0] !== "string") return shown;
+          world.choose(answers.shift()!);
+          continue;
+        }
         const answer = answers.shift();
         world.choose(
           typeof answer === "number"