Add detailed statistics API v2 documentation and implement frontend components for displaying statistics

src/types/challenge.ts

@@ -113,7 +113,7 @@ export interface SystemStats {
 
 // API Request/Response types
 export interface APIResponse<T> {
-  error: any
+  error: unknown
   data: T
 }
 
@@ -139,3 +139,87 @@ export interface UpdateChainRequest {
   taskIds?: string[]
 }
 
+// ========== Stats v2 Types ==========
+
+export type TaskProgressStatus = 'not_started' | 'pending' | 'in_progress' | 'needs_revision' | 'completed'
+
+export interface TaskTableItem {
+  taskId: string
+  title: string
+  totalAttempts: number
+  uniqueUsers: number
+  acceptedCount: number
+  successRate: number
+  averageAttemptsToSuccess: number
+}
+
+export interface ChainProgress {
+  chainId: string
+  chainName: string
+  totalTasks: number
+  completedTasks: number
+  progressPercent: number
+}
+
+export interface ActiveParticipant {
+  userId: string
+  nickname: string
+  totalSubmissions: number
+  completedTasks: number
+  chainProgress: ChainProgress[]
+}
+
+export interface TaskProgress {
+  taskId: string
+  taskTitle: string
+  status: TaskProgressStatus
+}
+
+export interface ParticipantProgress {
+  userId: string
+  nickname: string
+  taskProgress: TaskProgress[]
+  completedCount: number
+  progressPercent: number
+}
+
+export interface ChainTask {
+  taskId: string
+  title: string
+  description: string
+}
+
+export interface ChainDetailed {
+  chainId: string
+  name: string
+  totalTasks: number
+  tasks: ChainTask[]
+  participantProgress: ParticipantProgress[]
+}
+
+export interface SystemStatsV2 {
+  // Базовая статистика из v1
+  users: number
+  tasks: number
+  chains: number
+  submissions: {
+    total: number
+    accepted: number
+    rejected: number
+    pending: number
+    inProgress: number
+  }
+  averageCheckTimeMs: number
+  queue: {
+    queueLength: number
+    waiting: number
+    inProgress: number
+    maxConcurrency: number
+    currentlyProcessing: number
+  }
+  // Новые данные v2
+  tasksTable: TaskTableItem[]
+  activeParticipants: ActiveParticipant[]
+  chainsDetailed: ChainDetailed[]
+}
+