feat: implement balance tier system and update research points allocation in maintenance worker

src/app/lottery/page.tsx

@@ -5,8 +5,7 @@ import { Loader2, Dices, CheckCircle2 } from 'lucide-react'
 import { formatCurrency } from '@/lib/utils'
 import { useSession } from 'next-auth/react'
 import Link from 'next/link'
-
-const GRID_SIZE = 25
+import { GRID_SIZE, PRIZE_MAP } from '@/lib/lottery'
 
 type PickResult = {
   box: number
@@ -86,11 +85,24 @@ export default function LotteryPage() {
     )
   }
 
-  const prizeLabels: Record<number, string> = {
-    200: '🏆 $200',
-    50: '🥈 $50',
-    10: '🎁 $10',
-  }
+  const PRIZE_EMOJIS = ['🏆', '🥈', '🎁', '✨', '⭐']
+  const uniquePrizes = [...new Set(Object.values(PRIZE_MAP))].filter(v => v > 0).sort((a, b) => b - a)
+  const prizeCounts = uniquePrizes.reduce<Record<number, number>>((acc, amt) => {
+    acc[amt] = Object.values(PRIZE_MAP).filter(v => v === amt).length
+    return acc
+  }, {})
+  const prizeBoxCount = Object.values(PRIZE_MAP).filter(v => v > 0).length
+  const emptyBoxCount = GRID_SIZE - prizeBoxCount
+  const TIER_COLORS = [
+    { bg: 'bg-amber-500/10', border: 'border-amber-500/20', text: 'text-amber-400' },
+    { bg: 'bg-slate-500/10', border: 'border-slate-500/20', text: 'text-slate-300' },
+    { bg: 'bg-emerald-500/10', border: 'border-emerald-500/20', text: 'text-emerald-400' },
+    { bg: 'bg-indigo-500/10', border: 'border-indigo-500/20', text: 'text-indigo-400' },
+    { bg: 'bg-pink-500/10', border: 'border-pink-500/20', text: 'text-pink-400' },
+  ]
+  const prizeLabels: Record<number, string> = Object.fromEntries(
+    uniquePrizes.map((amt, i) => [amt, `${PRIZE_EMOJIS[i] ?? '🎁'} ${formatCurrency(amt)}`])
+  )
 
   return (
     <div className="max-w-xl mx-auto space-y-8">
@@ -107,21 +119,22 @@ export default function LotteryPage() {
       {/* Prize table */}
       <div className="bg-surface-card border border-surface-border rounded-xl p-4">
         <p className="text-xs text-slate-500 mb-3 font-medium uppercase tracking-wider">Prize pool</p>
-        <div className="grid grid-cols-3 gap-2 text-sm text-center">
-          <div className="bg-amber-500/10 border border-amber-500/20 rounded-lg p-2">
-            <p className="font-bold text-amber-400">$200</p>
-            <p className="text-xs text-slate-500">×1 box</p>
-          </div>
-          <div className="bg-slate-500/10 border border-slate-500/20 rounded-lg p-2">
-            <p className="font-bold text-slate-300">$50</p>
-            <p className="text-xs text-slate-500">×2 boxes</p>
-          </div>
-          <div className="bg-emerald-500/10 border border-emerald-500/20 rounded-lg p-2">
-            <p className="font-bold text-emerald-400">$10</p>
-            <p className="text-xs text-slate-500">×3 boxes</p>
-          </div>
+        <div
+          className="grid gap-2 text-sm text-center"
+          style={{ gridTemplateColumns: `repeat(${uniquePrizes.length}, 1fr)` }}
+        >
+          {uniquePrizes.map((amt, i) => {
+            const color = TIER_COLORS[i] ?? TIER_COLORS[TIER_COLORS.length - 1]
+            const count = prizeCounts[amt]
+            return (
+              <div key={amt} className={`${color.bg} border ${color.border} rounded-lg p-2`}>
+                <p className={`font-bold ${color.text}`}>{formatCurrency(amt)}</p>
+                <p className="text-xs text-slate-500">×{count} box{count !== 1 ? 'es' : ''}</p>
+              </div>
+            )
+          })}
         </div>
-        <p className="text-xs text-slate-600 mt-2 text-center">Remaining 19 boxes: $0</p>
+        <p className="text-xs text-slate-600 mt-2 text-center">All remaining {emptyBoxCount} boxes: $0</p>
       </div>
 
       {/* Result banner */}

src/app/profile/[username]/page.tsx

@@ -3,6 +3,7 @@ import { getServerSession } from 'next-auth'
 import { authOptions } from '@/lib/auth'
 import { notFound } from 'next/navigation'
 import { formatCurrency, formatNumber, pnlColor, formatPnl } from '@/lib/utils'
+import { getBalanceTier } from '@/lib/pricing'
 import Link from 'next/link'
 import { TrendingUp, TrendingDown, Coins } from 'lucide-react'
 import ChangePasswordForm from './ChangePasswordForm'
@@ -74,9 +75,28 @@ export default async function ProfilePage({ params }: Props) {
             <p className="text-slate-500 text-sm">@{user.username}</p>
           )}
           {isOwn && (
-            <p className="text-slate-400 text-sm mt-1">
-              {user.researchPoints} research point{user.researchPoints !== 1 ? 's' : ''} available
-            </p>
+            <div className="mt-1 text-sm text-slate-400 space-y-0.5">
+              {(() => {
+                const tier = getBalanceTier(user.balance)
+                return (
+                  <>
+                    <p>
+                      <span className="text-slate-300 font-medium">Tier {tier.level}</span>
+                      <span className="text-slate-600 mx-1.5">&middot;</span>
+                      {tier.pointsPerDay} research pt{tier.pointsPerDay !== 1 ? 's' : ''}/day
+                      {tier.nextThreshold && (
+                        <span className="text-slate-600 text-xs ml-1.5">
+                          (next tier at {formatCurrency(tier.nextThreshold)})
+                        </span>
+                      )}
+                    </p>
+                    <p>
+                      {user.researchPoints} research point{user.researchPoints !== 1 ? 's' : ''} available
+                    </p>
+                  </>
+                )
+              })()}
+            </div>
           )}
         </div>
         <div className="text-right">

src/lib/pricing.ts

@@ -25,6 +25,20 @@ export function dailyResearchPoints(balance: number): number {
   return 1
 }
 
+export interface BalanceTier {
+  level: number
+  pointsPerDay: number
+  nextThreshold: number | null
+}
+
+/** Returns the tier info for a given balance. */
+export function getBalanceTier(balance: number): BalanceTier {
+  if (balance >= 1_000_000) return { level: 4, pointsPerDay: 5, nextThreshold: null }
+  if (balance >= 100_000)   return { level: 3, pointsPerDay: 3, nextThreshold: 1_000_000 }
+  if (balance >= 10_000)    return { level: 2, pointsPerDay: 2, nextThreshold: 100_000 }
+  return                           { level: 1, pointsPerDay: 1, nextThreshold: 10_000 }
+}
+
 /**
  * Calculate the cost/proceeds and realized P&L for a trade.
  *

src/worker/index.ts

@@ -170,13 +170,17 @@ const maintenanceWorker = new Worker(
   async (job) => {
     console.log(`[maintenance] running daily maintenance (job ${job.id})`)
 
-    const users = await prisma.user.findMany({ select: { id: true, balance: true } })
+    const MAX_RESEARCH_POINTS = 10
+    const users = await prisma.user.findMany({ select: { id: true, balance: true, researchPoints: true } })
     for (const user of users) {
       const points = dailyResearchPoints(user.balance)
-      await prisma.user.update({
-        where: { id: user.id },
-        data: { researchPoints: { increment: points } },
-      })
+      const newTotal = Math.min(user.researchPoints + points, MAX_RESEARCH_POINTS)
+      if (newTotal !== user.researchPoints) {
+        await prisma.user.update({
+          where: { id: user.id },
+          data: { researchPoints: newTotal },
+        })
+      }
     }
 
     console.log(`[maintenance] awarded research points to ${users.length} users`)