Port evolution, Rare Candy, evolution stones and vitamins

Pokémon that levelled up evolve after a won battle, following
EvolveAfterBattle's checks over the ROM's evolution bytes, with the
evolution screen that B can stop and move learning outside battle. The pack
uses Rare Candy, stones (with ABLE/NOT ABLE labels) and vitamins, and its
pocket tabs now sit in their own row.

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

src/main.ts

@@ -264,7 +264,9 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
   const key = JSON.stringify(mart);
   if (key === martMenuKey) return;
   martMenuKey = key;
-  const menu = get("mart-menu");
+  const menu = get("mart-menu"),
+    tabs = get("mart-tabs");
+  tabs.hidden = mart.kind !== "pack";
   const button = (
     label: string,
     action: () => void,
@@ -299,7 +301,7 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
   }
   if (mart.kind === "pack") {
     // Pocket tabs (left and right on the keyboard), then the pocket's items.
-    const tabs = mart.pockets.map((pocket, index) => {
+    const pocketTabs = mart.pockets.map((pocket, index) => {
       const tab = button(pocket.name, () => {
         const world = runtime.world;
         const choice = world?.dialogue?.choice;
@@ -328,7 +330,8 @@ function showMart(world: GameWorld, mart: MartChoice | undefined) {
       buttons.push(empty);
     }
     buttons.push(button("BACK", () => runtime.choose(-1), { wide: true }));
-    menu.replaceChildren(...tabs, ...buttons);
+    tabs.replaceChildren(...pocketTabs);
+    menu.replaceChildren(...buttons);
     return;
   }
   if (mart.kind === "martlist") {