Port the PC and boxes

Read TileCollisionStdScripts from the ROM so the Pokémon Center PC runs
PokemonCenterPC: Bill's PC (deposit, withdraw, release, change and name
boxes), the player's item storage (withdraw, deposit, toss, mail box) and
Oak's Pokédex rating. The house PC now opens the full player's PC menu.

A catch with a full party goes to the current box through SendMonIntoBox;
a full box keeps the ball, and filling it queues Bill's call as a memory
script after the battle. Saves gain boxes, box names and PC items,
migrated by absence.

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

src/main.ts

@@ -148,8 +148,14 @@ function showChoice(choice: Choice | undefined) {
         const option = button(item, choice.selected === index, () =>
           runtime.choose(index),
         );
+        const detail = choice.details?.[index];
+        if (detail) {
+          const small = document.createElement("small");
+          small.textContent = detail;
+          option.append(small);
+        }
         option.setAttribute("role", "option");
-        option.setAttribute("aria-label", item);
+        option.setAttribute("aria-label", detail ? `${item} ${detail}` : item);
         option.setAttribute("aria-selected", String(choice.selected === index));
         return option;
       }),
@@ -218,6 +224,11 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
     martMenuKey = "";
     return;
   }
+  // The PC's item storage reuses these lists without prices.
+  const shop =
+    mart.kind === "martmenu" || mart.mode === "buy" || mart.mode === "sell";
+  get("mart").setAttribute("aria-label", shop ? "Poké Mart" : "Item storage");
+  get("mart-money").hidden = !shop;
   get("mart-money").textContent = `MONEY ¥${world.liveState.money}`;
   get("mart-prompt").textContent = mart.kind === "martlist" ? "" : mart.prompt;
   const key = JSON.stringify(mart);
@@ -260,7 +271,11 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
     const buttons = mart.entries.map((entry, index) =>
       button(entry.name, () => runtime.choose(index), {
         detail:
-          mart.mode === "sell" ? `have ${entry.owned}` : `¥${entry.price}`,
+          mart.mode === "sell"
+            ? `have ${entry.owned}`
+            : mart.mode === "buy"
+              ? `¥${entry.price}`
+              : `×${entry.owned}`,
         selected: mart.selected === index,
       }),
     );
@@ -290,7 +305,9 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
     return element;
   };
   const output = document.createElement("output");
-  output.textContent = `${mart.name} ×${mart.selected}  ¥${total}`;
+  output.textContent = shop
+    ? `${mart.name} ×${mart.selected}  ¥${total}`
+    : `${mart.name} ×${mart.selected}`;
   stepper.append(
     step("◀◀", "Minus 10", "left"),
     step("▼", "Minus 1", "down"),
@@ -300,11 +317,9 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
   );
   menu.replaceChildren(
     stepper,
-    button(
-      mart.mode === "sell" ? "SELL" : "BUY",
-      () => runtime.choose(mart.selected),
-      { wide: true },
-    ),
+    button(mart.mode.toUpperCase(), () => runtime.choose(mart.selected), {
+      wide: true,
+    }),
     button("CANCEL", () => runtime.choose(-1), { wide: true }),
   );
 }