update protocol

baseapi/base/v1/odysseus.proto

@@ -52,13 +52,13 @@ message TaskContent {
 // ) timestamp (time) PARTITION BY DAY WAL;
 message TaskReceipt {
     string task_uuid = 1;
-    uint64 task_finish_time = 2;
+    uint64 task_timestamp = 2;
     uint64 task_id = 3;
     string task_uid = 4;
     int64 task_fee = 5;
     int64 task_out_len = 6;
     int64 task_workload = 7;
-    int64 task_duration = 8;
+    int64 task_duration = 8; // task duration in us.
     string task_profit_account = 9;
     string task_worker_account = 10;
     string task_result = 11; // some message for task result, ex: failed, success, timeout, etc.