fix(analytics-route): exclude soft-deleted measurements in chunked series fetch

The three Measurement reads in the analytics route — glucose-by-context,
sleep-stage breakdown, and the fetchMeasurementSeriesChunked paged
helper that backs the per-type summarize loop and the BP-Zielbereich
windowing — were still pulling soft-deleted rows. W-DELETED skipped this
file assuming the W-POOL pool / p-limit pass covered it, but that pass
only addressed concurrency, not the deletedAt predicate.

Adds deletedAt: null to all three findMany clauses so the route shares
the same soft-delete contract as every other analytics read path. iOS
soft-delete unblocked.

src/app/api/analytics/route.ts

@@ -509,6 +509,7 @@ async function buildAnalyticsResponse(user: AuthedUser) {
       userId: user.id,
       type: "BLOOD_GLUCOSE",
       measuredAt: { gte: glucoseSince },
+      deletedAt: null,
     },
     orderBy: { measuredAt: "asc" },
     select: { value: true, measuredAt: true, glucoseContext: true },
@@ -618,6 +619,7 @@ async function computeSleepStageBreakdown(
       type: "SLEEP_DURATION",
       sleepStage: { not: null },
       measuredAt: { gte: since },
+      deletedAt: null,
     },
     select: { value: true, measuredAt: true, sleepStage: true },
   });
@@ -727,6 +729,7 @@ async function fetchMeasurementSeriesChunked(
         userId,
         type,
         ...(options.since ? { measuredAt: { gte: options.since } } : {}),
+        deletedAt: null,
       },
       orderBy: [{ measuredAt: "asc" }, { id: "asc" }],
       select: {