fix(doctor-report): exclude soft-deleted measurements in PDF aggregator

v1.4.41 W-DELETED-2 — the doctor-report-data aggregator (shared by
/api/doctor-report JSON + /api/doctor-report/pdf server render) and the
section-availability probe now filter deletedAt: null so deleted rows
never appear in the rendered PDF or trigger an empty section toggle.

src/app/api/doctor-report/availability/route.ts

@@ -93,6 +93,7 @@ export const POST = apiHandler(async (request: NextRequest) => {
         userId: user.id,
         measuredAt: { gte: start, lte: end },
         type: "SLEEP_DURATION",
+        deletedAt: null,
       },
     }),
     prisma.user.findUnique({