e2e: world map smoke tests + jump persistence across container restart

e2e/smoke.spec.ts

@@ -1,5 +1,9 @@
 import { expect, test } from '@playwright/test';
 
+// Mirrors the /api/world response shape (lib/game/save.ts) — kept local so the spec stays self-contained.
+interface WorldSystemDto { id: number; name: string; x: number; y: number; discovered: boolean; current: boolean }
+interface WorldState { systems: WorldSystemDto[]; edges: [number, number][]; turn: number }
+
 test('landing page loads with the SpaceWanderer title', async ({ page }) => {
   await page.goto('/');
   await expect(page.getByRole('heading', { name: 'SpaceWanderer' })).toBeVisible();
@@ -21,6 +25,30 @@ test('tabs switch panels client-side (event log terminal)', async ({ page }) =>
   await expect(page.getByText('SHIP LOG // PLACEHOLDER FEED')).toBeVisible();
 });
 
+test('world map shows the generated starting system and its neighbours', async ({ page }) => {
+  await page.goto('/');
+  // Live chart title carries the turn counter; a fresh save sits at the start with six jump routes.
+  await expect(page.getByText(/GALACTIC CHART \/\/ JUMP ROUTES — TURN \d+/)).toBeVisible();
+  const jumpButtons = page.getByRole('button', { name: /\/\/ JUMP$/ });
+  await expect(jumpButtons.first()).toBeVisible();
+  await expect(jumpButtons).toHaveCount(6);
+});
+
+test('jumping to an adjacent system updates the world state and turn counter', async ({ page }) => {
+  const before = (await (await page.request.get('/api/world')).json()) as WorldState;
+  const currentId = before.systems.find((s) => s.current)!.id;
+  const edge = before.edges.find(([a, b]) => a === currentId || b === currentId)!;
+  const targetId = edge[0] === currentId ? edge[1] : edge[0];
+  const targetName = before.systems.find((s) => s.id === targetId)!.name;
+
+  await page.goto('/');
+  await page.getByRole('button', { name: `${targetName.toUpperCase()} // JUMP` }).click();
+
+  const after = (await (await page.request.get('/api/world')).json()) as WorldState;
+  expect(after.turn).toBe(before.turn + 1);
+  expect(after.systems.find((s) => s.current)?.id).toBe(targetId);
+});
+
 test('GET /api/version reports the app version as JSON', async ({ page }) => {
   const res = await page.request.get('/api/version');
   expect(res.status()).toBe(200);