✨Feature: add town systems, saves, recovery, and level progression

src/rules/townServices.test.ts

@@ -0,0 +1,71 @@
+import { describe, expect, it } from "vitest";
+
+import { sampleContentPack } from "@/data/sampleContentPack";
+
+import { createStartingAdventurer } from "./character";
+import { createRunState, returnToTown } from "./runState";
+import { useTownService } from "./townServices";
+
+function createAdventurer() {
+  return createStartingAdventurer(sampleContentPack, {
+    name: "Aster",
+    weaponId: "weapon.short-sword",
+    armourId: "armour.leather-vest",
+    scrollId: "scroll.lesser-heal",
+  });
+}
+
+describe("town services", () => {
+  it("heals the adventurer to full at the healer", () => {
+    const run = createRunState({
+      content: sampleContentPack,
+      campaignId: "campaign.1",
+      adventurer: createAdventurer(),
+    });
+
+    run.adventurerSnapshot.hp.current = 3;
+    run.adventurerSnapshot.inventory.currency.gold = 3;
+
+    const inTown = returnToTown(run, "2026-03-18T21:00:00.000Z").run;
+    const result = useTownService({
+      content: sampleContentPack,
+      run: inTown,
+      serviceId: "service.healer",
+      at: "2026-03-18T21:05:00.000Z",
+    });
+
+    expect(result.run.adventurerSnapshot.hp.current).toBe(
+      result.run.adventurerSnapshot.hp.max,
+    );
+    expect(result.run.adventurerSnapshot.inventory.currency.gold).toBe(1);
+    expect(result.run.log.at(-1)?.text).toContain("restored the party to full health");
+  });
+
+  it("buys a ration at the market", () => {
+    const run = createRunState({
+      content: sampleContentPack,
+      campaignId: "campaign.1",
+      adventurer: createAdventurer(),
+    });
+
+    run.adventurerSnapshot.inventory.currency.gold = 2;
+
+    const inTown = returnToTown(run).run;
+    const result = useTownService({
+      content: sampleContentPack,
+      run: inTown,
+      serviceId: "service.market",
+    });
+
+    expect(result.run.adventurerSnapshot.inventory.currency.gold).toBe(1);
+    expect(result.run.adventurerSnapshot.inventory.rationCount).toBe(4);
+    expect(result.run.adventurerSnapshot.inventory.carried).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          definitionId: "item.ration",
+          quantity: 4,
+        }),
+      ]),
+    );
+  });
+});