test: type the new fixtures instead of casting them to never

The fixtures added with these fixes switched the type checker off with
`as never`, which the realism ratchet refuses to see grow. They now carry
their types, three webhook mocks needed no cast at all, and the lowered
counts, with the targets route's one fewer version stamp, are written
back.

src/app/api/measurements/bulk-delete/__tests__/route.test.ts

@@ -158,10 +158,8 @@ describe("POST /api/measurements/bulk-delete", () => {
 
   it("leaves a computed score out of the selection it deletes", async () => {
     // The read is scoped like the write, so a computed row never reaches it.
-    vi.mocked(prisma.measurement.findMany).mockResolvedValue([] as never);
-    vi.mocked(prisma.measurement.updateMany).mockResolvedValue({
-      count: 0,
-    } as never);
+    vi.mocked(prisma.measurement.findMany).mockResolvedValue([]);
+    vi.mocked(prisma.measurement.updateMany).mockResolvedValue({ count: 0 });
 
     await POST(postReq({ ids: ["score-1"] }));
 

src/app/api/onboarding/complete/__tests__/route.test.ts

@@ -94,7 +94,7 @@ describe("POST /api/onboarding/complete", () => {
     vi.mocked(getSession).mockResolvedValue({
       ...SESSION_OK,
       user: { ...SESSION_OK.user, timezone: "Europe/Berlin" },
-    } as never);
+    } as unknown as Awaited<ReturnType<typeof getSession>>);
     // 14 May picked at 00:30 in Berlin.
     const res = await POST(req({ dateOfBirth: "1960-05-13T23:30:00Z" }));
     expect(res.status).toBe(200);

src/app/api/telegram/webhook/__tests__/route.test.ts

@@ -479,7 +479,7 @@ describe("Telegram webhook — callback dispatch", () => {
   });
 
   it("rejects 'taken' for an inactive medication and acks with the localised error", async () => {
-    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([] as never);
+    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([]);
     const res = await POST(tgRequest(callbackUpdate("taken:med-1")));
     expect(res.status).toBe(200);
 
@@ -497,7 +497,7 @@ describe("Telegram webhook — callback dispatch", () => {
   });
 
   it("'snooze' for a missing medication acks with medicationNotFound (no update)", async () => {
-    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([] as never);
+    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([]);
     const res = await POST(tgRequest(callbackUpdate("snooze:med-X:60")));
     expect(res.status).toBe(200);
     expect(prisma.medication.update).not.toHaveBeenCalled();
@@ -652,7 +652,7 @@ describe("Telegram webhook — text-message dispatch", () => {
   });
 
   it("/add with no active medications replies with the 'no active' message", async () => {
-    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([] as never);
+    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([]);
     const res = await POST(
       tgRequest({
         update_id: 203,
@@ -769,7 +769,7 @@ describe("Telegram webhook — text-message dispatch", () => {
 
   it("'taken UnknownMed' replies with the medication-not-found message and writes nothing", async () => {
     // The lookup by name finds nothing.
-    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([] as never);
+    vi.mocked(prisma.medication.findMany).mockResolvedValueOnce([]);
 
     const res = await POST(
       tgRequest({