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

Change-Id: I017c03df2bc1c40c4a080837821d56dfe58d6eb6
diff --git a/src/main/java/com/example/g8backend/controller/AuthController.java b/src/main/java/com/example/g8backend/controller/AuthController.java
index 4b3be4b..2f36500 100644
--- a/src/main/java/com/example/g8backend/controller/AuthController.java
+++ b/src/main/java/com/example/g8backend/controller/AuthController.java
@@ -63,6 +63,9 @@
         user.setUserName(registerDTO.getUserName());
         user.setPassword(passwordEncoder.encode(registerDTO.getPassword()));
         user.setEmail(registerDTO.getEmail());
+
+        // passkey 用于在客户端发送announce请求时获取用户信息
+        user.setPasskey(UUID.randomUUID().toString().replace("-", ""));
         userService.registerUser(user);
 
         return ResponseEntity.ok("注册成功");