prnd with world seed

src/app/App.ts

@@ -53,7 +53,11 @@ export class App {
   }
 
   private showSettings(): void {
-    const settings = createSettingsScreen(() => this.showMenu());
+    const settings = createSettingsScreen(
+      this.store.seed,
+      () => this.showMenu(),
+      (seed) => this.handleNewGame(seed),
+    );
     this.root.replaceChildren(settings);
   }
 
@@ -69,7 +73,9 @@ export class App {
     this.gameScreen.mount();
   }
 
-  private handleNewGame(): void {
+  /** Starts a fresh game — a freshly random seed by default, or an explicit one when called from
+   * Settings' seed field (which also acts as "restart the game with this seed"). */
+  private handleNewGame(seed?: number): void {
     // A resumable save existing means there's a live (not-dead) game being abandoned by starting
     // fresh instead of continuing it — record that as the last level's failure. A death already
     // records its own failure at the moment it happens (see GameStore.landRabbitStrike) and clears
@@ -77,6 +83,8 @@ export class App {
     if (hasSave())
       this.analytics.death('restarted');
     clearSave();
+    if (seed !== undefined)
+      this.store.setNextSeed(seed);
     this.showGame();
   }