优化用户登录逻辑

src/main/java/com/onekeycall/videotablet/controller/LoginController.java

@@ -37,9 +37,9 @@ public class LoginController {
                                @RequestParam(value = "user_id") String userId, @RequestParam String password) {
         try {
             userService.registerUser(userId, password);
-            return  Result.ok().message("User registered successfully");
+            return Result.ok().message("User registered successfully");
         } catch (RuntimeException e) {
-            return  Result.error().message(e.getMessage());
+            return Result.error().message(e.getMessage());
         }
     }
 
@@ -67,7 +67,7 @@ public class LoginController {
             @RequestParam String phone, @RequestParam String password) {
         User user = userService.getUserByPhone(phone);
         if (user == null) {
-            return Result.error().message("User not found with phone: " + phone);
+            return Result.error().message("手机号未注册");
         }
         String userId = user.getUserId();