Add Democratic fundraising platform.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/api/games/slots/route.ts

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+import { NextRequest, NextResponse } from "next/server";
+import { auth } from "@/auth";
+import { prisma } from "@/lib/prisma";
+import { generateServerSeed, deriveInt } from "@/lib/provably-fair";
+import { creditWalletCredits, debitWalletCredits, INSUFFICIENT_CREDITS } from "@/lib/wallet-safety";
+
+export const dynamic = "force-dynamic";
+
+const SYMBOLS = ["🍒", "🍋", "🍊", "🍇", "💎", "7️⃣"];
+const SYMBOL_WEIGHTS = [30, 25, 20, 15, 7, 3]; // out of 100
+
+// Paytable: 3 of a kind multipliers
+const PAYTABLE: Record<string, number> = {
+  "🍒": 2,
+  "🍋": 3,
+  "🍊": 5,
+  "🍇": 10,
+  "💎": 25,
+  "7️⃣": 50,
+};
+
+function weightedSymbol(roll: number): string {
+  let cumulative = 0;
+  for (let i = 0; i < SYMBOLS.length; i++) {
+    cumulative += SYMBOL_WEIGHTS[i];
+    if (roll < cumulative) return SYMBOLS[i];
+  }
+  return SYMBOLS[SYMBOLS.length - 1];
+}
+
+export async function POST(req: NextRequest) {
+  const session = await auth();
+  if (!session?.user?.id) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+  const body = await req.json();
+  const { wageBLW, clientSeed } = body as { wageBLW: number; clientSeed?: string };
+
+  if (!Number.isInteger(wageBLW) || wageBLW < 1) return NextResponse.json({ error: "Invalid wager" }, { status: 400 });
+
+  const serverSeed = generateServerSeed();
+  const cs = clientSeed ?? "default";
+
+  const reels = [
+    weightedSymbol(deriveInt(serverSeed, cs, 0, 0, 99)),
+    weightedSymbol(deriveInt(serverSeed, cs, 1, 0, 99)),
+    weightedSymbol(deriveInt(serverSeed, cs, 2, 0, 99)),
+  ];
+
+  let multiplier = 0;
+  let outcome = "loss";
+
+  if (reels[0] === reels[1] && reels[1] === reels[2]) {
+    multiplier = PAYTABLE[reels[0]] ?? 2;
+    outcome = "win";
+  } else if (reels[0] === reels[1] || reels[1] === reels[2] || reels[0] === reels[2]) {
+    multiplier = 1.5;
+    outcome = "win";
+  }
+
+  const payout = outcome === "win" ? Math.floor(wageBLW * multiplier) : 0;
+
+  try {
+    await prisma.$transaction(async (tx) => {
+      await debitWalletCredits(tx, session.user.id, wageBLW);
+      await tx.ledgerEntry.create({
+        data: { userId: session.user.id, delta: -wageBLW, type: "DEBIT_GAME_BET", memo: "SLOTS bet" },
+      });
+      if (payout > 0) {
+        await creditWalletCredits(tx, session.user.id, payout);
+        await tx.ledgerEntry.create({
+          data: { userId: session.user.id, delta: payout, type: "CREDIT_GAME_WIN", memo: "SLOTS payout" },
+        });
+      }
+      await tx.gameSession.create({
+        data: {
+          userId: session.user.id,
+          gameType: "SLOTS",
+          wageredBLW: wageBLW,
+          payoutBLW: payout,
+          multiplier,
+          outcome,
+          serverSeed,
+          clientSeed: cs,
+          resultData: { reels, multiplier },
+        },
+      });
+    });
+  } catch (e) {
+    if (e instanceof Error && e.message === INSUFFICIENT_CREDITS) {
+      return NextResponse.json({ error: "Insufficient balance" }, { status: 402 });
+    }
+    console.error(e);
+    return NextResponse.json({ error: "Could not settle slots game" }, { status: 500 });
+  }
+
+  return NextResponse.json({ reels, multiplier, payout, outcome, serverSeed });
+}