Add bpInTargetCount90/SpanDays90 to snapshot extras OpenAPI

buildExtras emits bpInTargetCount90 + bpInTargetSpanDays90, but the
registered extras schema (additionalProperties: false) omitted them, so a
strict iOS decoder would reject the dashboard snapshot. Declare both as
nullable integers to match the runtime shape and regenerate the spec.

src/lib/openapi/routes/insights.ts

@@ -661,6 +661,8 @@ const dashboardSnapshotResponse = z
         bpInTargetPctAllTime: z.number().nullable(),
         bpInTargetPctPriorMonth: z.number().nullable(),
         bpInTargetPctPriorYear: z.number().nullable(),
+        bpInTargetCount90: z.number().int().nullable(),
+        bpInTargetSpanDays90: z.number().int().nullable(),
         glucoseByContext: dataSummaryRecord,
         glucoseClinical: glucoseClinicalSchema,
       })