Changes to Trader leaderboard

for the query request parameter limit, the max was set to 100.00

for the query request parameter limit, the min was set to 1.00

added the new optional query request parameter minTrades

the response property traders/items/firstTradeAt became nullable for the status 200

the response property traders/items/largestLoss became nullable for the status 200

the response property traders/items/largestWin became nullable for the status 200

the response property traders/items/lastTradeAt became nullable for the status 200

the response property traders/items/totalFees became nullable for the status 200

added the non-success response with the status 403

removed the non-success response with the status 401

added the optional property reason to the response with the 400 status

added the optional property reason to the response with the 422 status

added the optional property reason to the response with the 429 status

added the optional property reason to the response with the 500 status

added the optional property reason to the response with the 504 status