fix: unlock exploration areas on zone unlock, correct quest_eternal count, fix quest status filter in timers

apps/api/test/routes/boss.spec.ts

@@ -294,6 +294,52 @@ describe("boss route", () => {
     expect(body.won).toBe(true);
   });
 
+  it("handles zone unlock gracefully when exploration state is undefined", async () => {
+    const state = makeState({
+      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
+      adventurers: [makeAdventurer()] as GameState["adventurers"],
+      zones: [{ id: "test_zone", status: "locked", unlockBossId: "test_boss", unlockQuestId: null }] as GameState["zones"],
+      quests: [],
+      exploration: undefined,
+    });
+    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+    vi.mocked(prisma.gameState.update).mockResolvedValueOnce({} as never);
+    const res = await challenge({ bossId: "test_boss" });
+    expect(res.status).toBe(200);
+    const body = await res.json() as { won: boolean };
+    expect(body.won).toBe(true);
+  });
+
+  it("unlocks exploration areas when a zone is unlocked on boss defeat", async () => {
+    const state = makeState({
+      bosses: [makeBoss({ currentHp: 100, maxHp: 100, damagePerSecond: 1 })] as GameState["bosses"],
+      adventurers: [makeAdventurer()] as GameState["adventurers"],
+      zones: [{ id: "test_zone", status: "locked", unlockBossId: "test_boss", unlockQuestId: null }] as GameState["zones"],
+      quests: [],
+      exploration: {
+        areas: [{ id: "test_area", status: "locked" as const }],
+        materials: [],
+        craftedRecipeIds: [],
+        craftedGoldMultiplier: 1,
+        craftedEssenceMultiplier: 1,
+        craftedClickMultiplier: 1,
+        craftedCombatMultiplier: 1,
+      },
+    });
+    vi.mocked(prisma.gameState.findUnique).mockResolvedValueOnce({ state } as never);
+    let savedState: GameState | undefined;
+    vi.mocked(prisma.gameState.update).mockImplementationOnce(async (args) => {
+      /* eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- Test assertion */
+      savedState = (args as { data: { state: GameState } }).data.state;
+      return {} as never;
+    });
+    const res = await challenge({ bossId: "test_boss" });
+    expect(res.status).toBe(200);
+    // Exploration area should remain locked — no matching defaultExploration for "test_area"
+    const area = savedState?.exploration?.areas.find((a) => a.id === "test_area");
+    expect(area?.status).toBe("locked");
+  });
+
   it("returns 500 when the database throws", async () => {
     vi.mocked(prisma.gameState.findUnique).mockRejectedValueOnce(new Error("DB error"));
     const res = await challenge({ bossId: "test_boss" });