add torrent upload(finished) and tracker announce(unimplemnt)

Change-Id: I017c03df2bc1c40c4a080837821d56dfe58d6eb6
diff --git a/src/main/java/com/example/g8backend/entity/Peer.java b/src/main/java/com/example/g8backend/entity/Peer.java
index 43302ce..b59f7ee 100644
--- a/src/main/java/com/example/g8backend/entity/Peer.java
+++ b/src/main/java/com/example/g8backend/entity/Peer.java
@@ -1,7 +1,5 @@
 package com.example.g8backend.entity;
 
-import com.baomidou.mybatisplus.annotation.IdType;
-import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import lombok.Data;
 
@@ -10,7 +8,7 @@
 public class Peer {
     private Long peerId;
     private String info_hash;
-    private Long userId; // passkey from announce
+    private String passkey;
     private String ipAddress;
     private Integer port;
     private Double uploaded;