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

src/__data__/api/api.ts

@@ -8,6 +8,7 @@ import type {
   ChallengeUser,
   ChallengeSubmission,
   SystemStats,
+  SystemStatsV2,
   UserStats,
   CreateTaskRequest,
   UpdateTaskRequest,
@@ -125,6 +126,14 @@ export const api = createApi({
       transformResponse: (response: { body: SystemStats }) => response.body,
       providesTags: ['Stats'],
     }),
+    getSystemStatsV2: builder.query<SystemStatsV2, string | undefined>({
+      query: (chainId) => ({
+        url: '/challenge/stats/v2',
+        params: chainId ? { chainId } : undefined,
+      }),
+      transformResponse: (response: { body: SystemStatsV2 }) => response.body,
+      providesTags: ['Stats'],
+    }),
     getUserStats: builder.query<UserStats, string>({
       query: (userId) => `/challenge/user/${userId}/stats`,
       transformResponse: (response: { body: UserStats }) => response.body,
@@ -161,6 +170,7 @@ export const {
   useDeleteChainMutation,
   useGetUsersQuery,
   useGetSystemStatsQuery,
+  useGetSystemStatsV2Query,
   useGetUserStatsQuery,
   useGetUserSubmissionsQuery,
   useGetAllSubmissionsQuery,