Penerapan notifikasi mobil ke database

Fix:
- modified:   prisma/schema.prisma

Add:
prisma/migrations/20251216041242_add_token_user_device_indexes/
src/app/api/mobile/auth/device-tokens/

### No Issue

src/app/api/mobile/auth/device-tokens/route.ts

@@ -0,0 +1,64 @@
+import { NextRequest, NextResponse } from "next/server";
+import { prisma } from "@/lib";
+
+export async function POST(request: NextRequest) {
+  const { data } = await request.json();
+  try {
+    console.log("Data >>", JSON.stringify(data, null, 2));
+
+    const { userId, platform, deviceId, model, appVersion, fcmToken } =
+      data;
+
+    if (!fcmToken) {
+      return NextResponse.json({ error: "Missing Token" }, { status: 400 });
+    }
+
+    const existing = await prisma.tokenUserDevice.findFirst({
+      where: {
+        token: fcmToken,
+        userId: userId,
+      },
+      select: {
+        id: true,
+      },
+    });
+
+    let deviceToken;
+
+    if (existing) {
+      deviceToken = await prisma.tokenUserDevice.update({
+        where: {
+          id: existing?.id,
+        },
+        data: {
+          platform,
+          deviceId,
+          model,
+          appVersion,
+          isActive: true,
+          updatedAt: new Date(),
+        },
+      });
+    } else {
+      // Buat baru jika belum ada
+      deviceToken = await prisma.tokenUserDevice.create({
+        data: {
+          token: fcmToken,
+          userId: userId,
+          platform,
+          deviceId,
+          model,
+          appVersion,
+          isActive: true,
+        },
+      });
+    }
+
+    return NextResponse.json({ success: true, data: deviceToken });
+  } catch (error) {
+    return NextResponse.json(
+      { error: (error as Error).message },
+      { status: 500 }
+    );
+  }
+}