Улучшение системы оспариваний и исправления

- Оспаривания теперь требуют решения админа после 24ч голосования
  - Можно повторно оспаривать после разрешённых споров
  - Исправлены бонусные очки при перепрохождении после оспаривания
  - Сброс серии при невалидном пруфе
  - Колесо показывает только доступные игры
  - Rate limiting только через backend (RATE_LIMIT_ENABLED)

frontend/src/pages/MarathonPage.tsx

@@ -1,7 +1,7 @@
 import { useState, useEffect, useRef } from 'react'
 import { useParams, useNavigate, Link } from 'react-router-dom'
 import { marathonsApi, eventsApi, challengesApi } from '@/api'
-import type { Marathon, ActiveEvent, Challenge } from '@/types'
+import type { Marathon, ActiveEvent, Challenge, MarathonDispute } from '@/types'
 import { NeonButton, GlassCard, StatsCard } from '@/components/ui'
 import { useAuthStore } from '@/store/auth'
 import { useToast } from '@/store/toast'
@@ -13,7 +13,8 @@ import { MarathonSettingsModal } from '@/components/MarathonSettingsModal'
 import {
   Users, Calendar, Trophy, Play, Settings, Copy, Check, Loader2, Trash2,
   Globe, Lock, CalendarCheck, UserPlus, Gamepad2, ArrowLeft, Zap, Flag,
-  Star, Target, TrendingDown, ChevronDown, ChevronUp, Link2, Sparkles
+  Star, Target, TrendingDown, ChevronDown, ChevronUp, Link2, Sparkles,
+  AlertTriangle, Clock, CheckCircle, XCircle, ThumbsUp, ThumbsDown, ExternalLink, User
 } from 'lucide-react'
 import { format } from 'date-fns'
 import { ru } from 'date-fns/locale'
@@ -39,10 +40,23 @@ export function MarathonPage() {
   const [showSettings, setShowSettings] = useState(false)
   const activityFeedRef = useRef<ActivityFeedRef>(null)
 
+  // Disputes for organizers
+  const [showDisputes, setShowDisputes] = useState(false)
+  const [disputes, setDisputes] = useState<MarathonDispute[]>([])
+  const [loadingDisputes, setLoadingDisputes] = useState(false)
+  const [disputeFilter, setDisputeFilter] = useState<'open' | 'all'>('open')
+  const [resolvingDisputeId, setResolvingDisputeId] = useState<number | null>(null)
+
   useEffect(() => {
     loadMarathon()
   }, [id])
 
+  useEffect(() => {
+    if (showDisputes) {
+      loadDisputes()
+    }
+  }, [showDisputes, disputeFilter])
+
   const loadMarathon = async () => {
     if (!id) return
     try {
@@ -80,6 +94,57 @@ export function MarathonPage() {
     }
   }
 
+  const loadDisputes = async () => {
+    if (!id) return
+    setLoadingDisputes(true)
+    try {
+      const data = await marathonsApi.listDisputes(parseInt(id), disputeFilter)
+      setDisputes(data)
+    } catch (error) {
+      console.error('Failed to load disputes:', error)
+      toast.error('Не удалось загрузить оспаривания')
+    } finally {
+      setLoadingDisputes(false)
+    }
+  }
+
+  const handleResolveDispute = async (disputeId: number, isValid: boolean) => {
+    if (!id) return
+    setResolvingDisputeId(disputeId)
+    try {
+      await marathonsApi.resolveDispute(parseInt(id), disputeId, isValid)
+      toast.success(isValid ? 'Пруф подтверждён' : 'Пруф отклонён')
+      await loadDisputes()
+    } catch (error) {
+      console.error('Failed to resolve dispute:', error)
+      toast.error('Не удалось разрешить диспут')
+    } finally {
+      setResolvingDisputeId(null)
+    }
+  }
+
+  const formatDisputeDate = (dateString: string) => {
+    return new Date(dateString).toLocaleString('ru-RU', {
+      day: 'numeric',
+      month: 'short',
+      hour: '2-digit',
+      minute: '2-digit',
+    })
+  }
+
+  const getDisputeTimeRemaining = (expiresAt: string) => {
+    const now = new Date()
+    const expires = new Date(expiresAt)
+    const diff = expires.getTime() - now.getTime()
+
+    if (diff <= 0) return 'Истекло'
+
+    const hours = Math.floor(diff / (1000 * 60 * 60))
+    const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60))
+
+    return `${hours}ч ${minutes}м`
+  }
+
   const getInviteLink = () => {
     if (!marathon) return ''
     return `${window.location.origin}/invite/${marathon.invite_code}`
@@ -385,6 +450,196 @@ export function MarathonPage() {
             </GlassCard>
           )}
 
+          {/* Disputes management for organizers */}
+          {marathon.status === 'active' && isOrganizer && (
+            <GlassCard>
+              <button
+                onClick={() => setShowDisputes(!showDisputes)}
+                className="w-full flex items-center justify-between"
+              >
+                <div className="flex items-center gap-3">
+                  <div className="w-10 h-10 rounded-xl bg-orange-500/20 flex items-center justify-center">
+                    <AlertTriangle className="w-5 h-5 text-orange-400" />
+                  </div>
+                  <div className="text-left">
+                    <h3 className="font-semibold text-white">Оспаривания</h3>
+                    <p className="text-sm text-gray-400">Проверьте спорные выполнения</p>
+                  </div>
+                </div>
+                <div className="flex items-center gap-3">
+                  {disputes.filter(d => d.status === 'open').length > 0 && (
+                    <span className="px-2 py-1 bg-orange-500/20 text-orange-400 rounded text-xs font-medium">
+                      {disputes.filter(d => d.status === 'open').length} открыто
+                    </span>
+                  )}
+                  {showDisputes ? (
+                    <ChevronUp className="w-5 h-5 text-gray-400" />
+                  ) : (
+                    <ChevronDown className="w-5 h-5 text-gray-400" />
+                  )}
+                </div>
+              </button>
+              {showDisputes && (
+                <div className="mt-6 pt-6 border-t border-dark-600">
+                  {/* Filters */}
+                  <div className="flex gap-2 mb-4">
+                    <button
+                      className={`px-3 py-1.5 rounded-lg text-sm font-medium transition-all ${
+                        disputeFilter === 'open'
+                          ? 'bg-orange-500/20 text-orange-400 border border-orange-500/30'
+                          : 'bg-dark-700 text-gray-400 border border-dark-600 hover:border-dark-500'
+                      }`}
+                      onClick={() => setDisputeFilter('open')}
+                    >
+                      Открытые
+                    </button>
+                    <button
+                      className={`px-3 py-1.5 rounded-lg text-sm font-medium transition-all ${
+                        disputeFilter === 'all'
+                          ? 'bg-accent-500/20 text-accent-400 border border-accent-500/30'
+                          : 'bg-dark-700 text-gray-400 border border-dark-600 hover:border-dark-500'
+                      }`}
+                      onClick={() => setDisputeFilter('all')}
+                    >
+                      Все
+                    </button>
+                  </div>
+
+                  {/* Loading */}
+                  {loadingDisputes ? (
+                    <div className="flex items-center justify-center py-8">
+                      <Loader2 className="w-6 h-6 animate-spin text-accent-500" />
+                    </div>
+                  ) : disputes.length === 0 ? (
+                    <div className="text-center py-8">
+                      <div className="w-12 h-12 mx-auto mb-3 rounded-xl bg-green-500/10 border border-green-500/30 flex items-center justify-center">
+                        <CheckCircle className="w-6 h-6 text-green-400" />
+                      </div>
+                      <p className="text-gray-400 text-sm">
+                        {disputeFilter === 'open' ? 'Нет открытых оспариваний' : 'Нет оспариваний'}
+                      </p>
+                    </div>
+                  ) : (
+                    <div className="space-y-3">
+                      {disputes.map((dispute) => (
+                        <div
+                          key={dispute.id}
+                          className={`p-4 bg-dark-700/50 rounded-xl border ${
+                            dispute.status === 'open' ? 'border-orange-500/30' : 'border-dark-600'
+                          }`}
+                        >
+                          <div className="flex items-start justify-between gap-3">
+                            <div className="flex-1 min-w-0">
+                              {/* Challenge title */}
+                              <h4 className="text-white font-medium truncate mb-1">
+                                {dispute.challenge_title}
+                              </h4>
+                              {/* Participants */}
+                              <div className="flex flex-wrap gap-3 text-xs text-gray-400 mb-2">
+                                <span className="flex items-center gap-1">
+                                  <User className="w-3 h-3" />
+                                  Автор: <span className="text-white">{dispute.participant_nickname}</span>
+                                </span>
+                                <span className="flex items-center gap-1">
+                                  <AlertTriangle className="w-3 h-3" />
+                                  Оспорил: <span className="text-white">{dispute.raised_by_nickname}</span>
+                                </span>
+                              </div>
+                              {/* Reason */}
+                              <p className="text-sm text-gray-300 mb-2 line-clamp-2">
+                                {dispute.reason}
+                              </p>
+                              {/* Votes & Time */}
+                              <div className="flex items-center gap-3 text-xs">
+                                <div className="flex items-center gap-1.5">
+                                  <div className="flex items-center gap-0.5 text-green-400">
+                                    <ThumbsUp className="w-3 h-3" />
+                                    <span>{dispute.votes_valid}</span>
+                                  </div>
+                                  <span className="text-gray-600">/</span>
+                                  <div className="flex items-center gap-0.5 text-red-400">
+                                    <ThumbsDown className="w-3 h-3" />
+                                    <span>{dispute.votes_invalid}</span>
+                                  </div>
+                                </div>
+                                <span className="text-gray-500">{formatDisputeDate(dispute.created_at)}</span>
+                                {dispute.status === 'open' && (
+                                  <span className="text-orange-400 flex items-center gap-1">
+                                    <Clock className="w-3 h-3" />
+                                    {getDisputeTimeRemaining(dispute.expires_at)}
+                                  </span>
+                                )}
+                              </div>
+                            </div>
+
+                            {/* Right side - Status & Actions */}
+                            <div className="flex flex-col items-end gap-2 shrink-0">
+                              {dispute.status === 'open' ? (
+                                <span className="px-2 py-1 bg-yellow-500/20 text-yellow-400 rounded text-xs font-medium flex items-center gap-1">
+                                  <Clock className="w-3 h-3" />
+                                  Открыт
+                                </span>
+                              ) : dispute.status === 'valid' ? (
+                                <span className="px-2 py-1 bg-green-500/20 text-green-400 rounded text-xs font-medium flex items-center gap-1">
+                                  <CheckCircle className="w-3 h-3" />
+                                  Валидно
+                                </span>
+                              ) : (
+                                <span className="px-2 py-1 bg-red-500/20 text-red-400 rounded text-xs font-medium flex items-center gap-1">
+                                  <XCircle className="w-3 h-3" />
+                                  Невалидно
+                                </span>
+                              )}
+
+                              {/* Link to assignment */}
+                              {dispute.assignment_id && (
+                                <Link
+                                  to={`/assignments/${dispute.assignment_id}`}
+                                  className="text-xs text-accent-400 hover:text-accent-300 flex items-center gap-1"
+                                >
+                                  <ExternalLink className="w-3 h-3" />
+                                  Открыть
+                                </Link>
+                              )}
+
+                              {/* Resolution buttons */}
+                              {dispute.status === 'open' && (
+                                <div className="flex gap-1.5 mt-1">
+                                  <NeonButton
+                                    size="sm"
+                                    variant="outline"
+                                    className="border-green-500/50 text-green-400 hover:bg-green-500/10 !px-2 !py-1 text-xs"
+                                    onClick={() => handleResolveDispute(dispute.id, true)}
+                                    isLoading={resolvingDisputeId === dispute.id}
+                                    disabled={resolvingDisputeId !== null}
+                                    icon={<CheckCircle className="w-3 h-3" />}
+                                  >
+                                    Валидно
+                                  </NeonButton>
+                                  <NeonButton
+                                    size="sm"
+                                    variant="outline"
+                                    className="border-red-500/50 text-red-400 hover:bg-red-500/10 !px-2 !py-1 text-xs"
+                                    onClick={() => handleResolveDispute(dispute.id, false)}
+                                    isLoading={resolvingDisputeId === dispute.id}
+                                    disabled={resolvingDisputeId !== null}
+                                    icon={<XCircle className="w-3 h-3" />}
+                                  >
+                                    Невалидно
+                                  </NeonButton>
+                                </div>
+                              )}
+                            </div>
+                          </div>
+                        </div>
+                      ))}
+                    </div>
+                  )}
+                </div>
+              )}
+            </GlassCard>
+          )}
+
           {/* Invite link */}
           {marathon.status !== 'finished' && (
             <GlassCard>