style: apply prettier 3.9.1 formatting

Mechanical reflow from the prettier 3.9.1 bump; no behaviour change.

src/app/api/ai/test/route.ts

@@ -123,10 +123,7 @@ export const POST = apiHandler(async (request: NextRequest) => {
  * legacy / unmapped code. Secret-free by construction.
  */
 type TestFailureCode =
-  | "credentials"
-  | "rate_limited"
-  | "server_error"
-  | "unreachable";
+  "credentials" | "rate_limited" | "server_error" | "unreachable";
 
 /**
  * Map an upstream provider failure to a human-readable, secret-free

src/app/api/auth/check-user/route.ts

@@ -53,10 +53,7 @@ const bodySchema = z.object({
 });
 
 export type CheckUserBranch =
-  | "not_found"
-  | "passkey_only"
-  | "email_fallback"
-  | "exists";
+  "not_found" | "passkey_only" | "email_fallback" | "exists";
 
 export const POST = apiHandler(async (request: NextRequest) => {
   // v1.4.43 W13 M-4 — tighter shared bucket on trust-chain misconfig.

src/app/api/dashboard/summary/__tests__/route.test.ts

@@ -175,8 +175,7 @@ describe("GET /api/dashboard/summary", () => {
     // The previous shape emitted "Gewicht" / "kg" / "Schritte" verbatim,
     // which injected DE into an English iOS UI.
     const weightCard = body.data.metrics.find((m) => m.id === "weight") as
-      | { titleKey: string; unitKey: string }
-      | undefined;
+      { titleKey: string; unitKey: string } | undefined;
     expect(weightCard?.titleKey).toBe("dashboard.metric.title.weight");
     expect(weightCard?.unitKey).toBe("dashboard.metric.unit.weight");
     expect(

src/app/api/insights/generate/route.ts

@@ -226,9 +226,10 @@ async function buildComparisonSnapshotForUser(
           orderBy: { measuredAt: "asc" },
           select: { measuredAt: true, value: true },
         });
-        dataPoints = measurements.map(
-          (m): DataPoint => ({ date: m.measuredAt, value: m.value }),
-        );
+        dataPoints = measurements.map((m): DataPoint => ({
+          date: m.measuredAt,
+          value: m.value,
+        }));
       }
       const summary = summarize(dataPoints);
       const baselineAvg =

src/app/api/measurements/batch/route.ts

@@ -542,8 +542,7 @@ async function postBatch(request: NextRequest): Promise<Response> {
               unit: p.row.unit as string,
               measuredAt: p.row.measuredAt as Date,
               externalSourceVersion: p.row.externalSourceVersion as
-                | string
-                | null,
+                string | null,
               deviceType: p.row.deviceType as Prepared["row"]["deviceType"],
               sleepStage: p.row.sleepStage as Prepared["row"]["sleepStage"],
             },