Initial Falah Mobile rebuild — all 7 blocks complete

- Auth system (login/register/profile)
- Nur AI chat with persona system
- Souq marketplace with FLH economy
- Forum community with Shariah moderation
- Wallet & FLH top-up
- Premium/Pro tier upgrade with Polar.sh
- Halal Monitor with map & bookmarks
- Home dashboard with daily verse & streaks
- Health endpoints

Next.js 16.2.7, Prisma v5 SQLite, JWT auth, Tailwind CSS v4

src/app/api/marketplace/feature/route.ts

@@ -0,0 +1,98 @@
+import { NextRequest, NextResponse } from "next/server";
+import { prisma } from "@/lib/prisma";
+import { requireAuth } from "@/lib/auth";
+
+export async function POST(request: NextRequest) {
+  try {
+    const auth = await requireAuth(request);
+    if (!auth) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const user = await prisma.user.findUnique({ where: { id: auth.userId } });
+    if (!user) {
+      return NextResponse.json({ error: "User not found" }, { status: 404 });
+    }
+
+    if (!user.isPro) {
+      return NextResponse.json(
+        { error: "Only Pro members can feature listings. Upgrade to Pro to access this feature." },
+        { status: 403 }
+      );
+    }
+
+    const { listingId } = await request.json();
+
+    if (!listingId) {
+      return NextResponse.json(
+        { error: "Missing required field: listingId" },
+        { status: 400 }
+      );
+    }
+
+    // Verify listing exists and belongs to user
+    const listing = await prisma.listing.findUnique({
+      where: { id: listingId },
+    });
+
+    if (!listing) {
+      return NextResponse.json({ error: "Listing not found" }, { status: 404 });
+    }
+
+    if (listing.sellerId !== user.id) {
+      return NextResponse.json(
+        { error: "You can only feature your own listings" },
+        { status: 403 }
+      );
+    }
+
+    if (listing.status !== "active") {
+      return NextResponse.json(
+        { error: "Cannot feature a sold or inactive listing" },
+        { status: 400 }
+      );
+    }
+
+    if (listing.featured) {
+      return NextResponse.json(
+        { error: "Listing is already featured" },
+        { status: 400 }
+      );
+    }
+
+    // Check FLH balance
+    const FEATURE_FEE = 100;
+    if (user.flhBalance < FEATURE_FEE) {
+      return NextResponse.json(
+        { error: `Insufficient FLH balance. Featuring costs ${FEATURE_FEE} FLH. Your balance: ${user.flhBalance} FLH.` },
+        { status: 400 }
+      );
+    }
+
+    // Deduct fee and set featured
+    const [updatedListing] = await prisma.$transaction([
+      prisma.listing.update({
+        where: { id: listingId },
+        data: {
+          featured: true,
+          featuredUntil: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000), // 30 days
+        },
+      }),
+      prisma.user.update({
+        where: { id: user.id },
+        data: { flhBalance: { decrement: FEATURE_FEE } },
+      }),
+    ]);
+
+    return NextResponse.json({
+      listing: updatedListing,
+      message: `Listing featured for 30 days. ${FEATURE_FEE} FLH deducted.`,
+    });
+  } catch (error) {
+    console.error("POST /api/marketplace/feature error:", error);
+    return NextResponse.json(
+      { error: "Internal server error" },
+      { status: 500 }
+    );
+  }
+}