Open Route 29 and Cherrygrove City

- Enable Route 29, its Route 46 gate, Cherrygrove City and its buildings.
- Run item balls through FindItemInBallScript and fruit trees through
  FruitTreeScript, with a native daily reset of the daily engine flags.
- Port the Pokémon Center nurse (HealParty with the PP Up clamp,
  CheckPokerus, phone-call checks) and record the whiteout spawn on
  entering a Pokémon Center, as EnterMapWarp does.
- Port standard Poké Marts with keyboard, D-pad and pointer menus.
- Add the recoil battle command (Struggle) and VAR_BOXSPACE.
- Save fruit trees, the daily reset day and the last spawn map; older
  version-3 backups migrate by absence.

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

tests/native-browser.spec.ts

@@ -3,6 +3,7 @@ import { existsSync, readFileSync, writeFileSync } from "node:fs";
 import { createHash } from "node:crypto";
 import { resolve } from "node:path";
 import { CrystalAssets } from "../src/game/rom/assets";
+import { generatePartyMon } from "../src/game/party/pokemon";
 import { GameWorld } from "../src/game/world/world";
 import type { Direction } from "../src/game/world/types";
 import { VECTORS } from "../src/game/world/types";
@@ -362,6 +363,55 @@ test("a home exit mat survives save/reload and waits for the exit direction", as
   await expect(page.locator("#game-notice")).toHaveText("");
 });
 
+test("walks from New Bark Town onto Route 29 after receiving a starter", async ({
+  page,
+}, testInfo) => {
+  test.skip(!existsSync(romPath), "Requires a local user-supplied ROM.");
+  const bytes = readFileSync(romPath);
+  const assets = new CrystalAssets(new Uint8Array(bytes));
+  const world = new GameWorld(assets);
+  const town = assets.map("24:4");
+  const edge = Array.from({ length: town.height }, (_, y) => y).find(
+    (y) => assets.permission(assets.collision(town, 0, y)) === 0,
+  )!;
+  world.state.party.push(
+    generatePartyMon(assets.pokemon, {
+      species: 155, level: 5, item: 0, otId: world.playerId,
+      ot: "CHRIS", dvs: 0x823b, caughtData: 0,
+    }),
+  );
+  // SCENE_NEWBARKTOWN_NOOP: after the starter the teacher no longer stops you.
+  world.restore({ ...world.save(), map: "24:4", x: 0, y: edge, direction: "left", scenes: { "24:4": 1 } });
+  const backup = testInfo.outputPath("new-bark-edge.crystal-save.json");
+  writeFileSync(
+    backup,
+    JSON.stringify({
+      version: 1,
+      romHash: createHash("sha1").update(bytes).digest("hex"),
+      coreId: "crystal-native-world-v1",
+      savedAt: new Date().toISOString(),
+      state: Buffer.from(JSON.stringify(world.save())).toString("base64"),
+    }),
+  );
+  await page.goto("/");
+  await page.locator("#rom-file").setInputFiles(romPath);
+  await expect(page.locator("#status")).toContainText("verified");
+  await page.locator("#tab-saves").click();
+  page.once("dialog", (dialog) => dialog.accept());
+  await page.locator("#save-file").setInputFiles(backup);
+  await expect(page.locator("#status")).toContainText("Backup restored");
+  await page.locator("#play").click();
+  const screen = page.locator("#game-screen");
+  await page.keyboard.down("ArrowLeft");
+  await page.waitForFunction(
+    () => document.querySelector("#game-screen")?.getAttribute("data-map") === "24:3",
+  );
+  await page.keyboard.up("ArrowLeft");
+  await expect(screen).toHaveAttribute("data-activity", "idle");
+  await expect(page.locator("#location")).toHaveText("Route 29");
+  await expect(page.locator("#game-notice")).toHaveText("");
+});
+
 test("development server does not serve ROMs or the private reference checkout", async ({
   request,
 }) => {