style: apply prettier across the tree

One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.

src/app/api/admin/status/__tests__/route.test.ts

@@ -170,5 +170,4 @@ describe("GET /api/admin/status (integration health summary)", () => {
     const tokenCallArgs = vi.mocked(prisma.apiToken.count).mock.calls[0]?.[0];
     expect(tokenCallArgs).toEqual({ where: { revoked: false } });
   });
-
 });