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/notifications/diagnostic/__tests__/route.test.ts

@@ -109,9 +109,7 @@ interface DiagnosticEnvelope {
 beforeEach(() => {
   vi.clearAllMocks();
   vi.mocked(prisma.device.findMany).mockResolvedValue([] as never);
-  vi.mocked(prisma.notificationChannel.findMany).mockResolvedValue(
-    [] as never,
-  );
+  vi.mocked(prisma.notificationChannel.findMany).mockResolvedValue([] as never);
   vi.mocked(prisma.pushAttempt.findMany).mockResolvedValue([] as never);
 });
 

src/app/api/admin/notifications/diagnostic/route.ts

@@ -80,9 +80,10 @@ interface DiagnosticPayload {
  * (prefix / suffix both null) — that shape never appears in
  * production, but defensive against partial inserts during testing.
  */
-function maskApnsToken(
-  token: string | null,
-): { prefix: string | null; suffix: string | null } {
+function maskApnsToken(token: string | null): {
+  prefix: string | null;
+  suffix: string | null;
+} {
   if (!token || token.length < 16) return { prefix: null, suffix: null };
   return {
     prefix: token.slice(0, 8),

src/app/api/admin/notifications/health/route.ts

@@ -75,7 +75,13 @@ export const GET = apiHandler(async (request) => {
   for (const row of grouped) {
     const existing =
       byChannel.get(row.channel) ??
-      ({ channel: row.channel, ok: 0, error: 0, skipped: 0, total: 0 } satisfies ChannelHealthRow);
+      ({
+        channel: row.channel,
+        ok: 0,
+        error: 0,
+        skipped: 0,
+        total: 0,
+      } satisfies ChannelHealthRow);
     const count = row._count._all;
     if (row.result === "ok") existing.ok += count;
     else if (row.result === "error") existing.error += count;

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

@@ -36,8 +36,9 @@ vi.mock("@/lib/api-handler", async () => {
     );
   return {
     ...actual,
-    apiHandler: <T extends (...args: unknown[]) => Promise<Response>>(h: T): T =>
-      h,
+    apiHandler: <T extends (...args: unknown[]) => Promise<Response>>(
+      h: T,
+    ): T => h,
     requireAdmin: vi.fn(),
   };
 });
@@ -149,9 +150,7 @@ describe("POST /api/admin/notifications/test — APNS branch (v1.4.46)", () => {
         eventType: "SYSTEM_ALERT",
       }),
     );
-    expect(body.data.results).toEqual([
-      { channel: "APNS", success: true },
-    ]);
+    expect(body.data.results).toEqual([{ channel: "APNS", success: true }]);
     expect(body.data.sent).toBe(true);
   });
 

src/app/api/admin/notifications/test/route.ts

@@ -63,8 +63,14 @@ async function ensureTelegramChannel(userId: string): Promise<boolean> {
 }
 
 function isLocale(value: string | null | undefined): value is Locale {
-  return value === "de" || value === "en" || value === "fr" ||
-    value === "es" || value === "it" || value === "pl";
+  return (
+    value === "de" ||
+    value === "en" ||
+    value === "fr" ||
+    value === "es" ||
+    value === "it" ||
+    value === "pl"
+  );
 }
 
 export const POST = apiHandler(async () => {