fix(backend): 改为后台配置注册限流阈值

fruitshorts-app-api/src/main/resources/application-prod.yml

@@ -17,9 +17,6 @@ spring:
     timeout-per-shutdown-phase: 30s
 
 fruitshorts:
-  auth:
-    register-max-per-ip-per-day: 5
-    register-max-per-device-per-day: 3
   media:
     # 生产必须开启播放地址签名（docs/12-上线检查清单）
     signature-required: true

fruitshorts-app-api/src/main/resources/application.yml

@@ -43,10 +43,6 @@ springdoc:
     path: /v3/api-docs
 
 fruitshorts:
-  auth:
-    # 注册频控；小于等于 0 表示不限制。开发环境默认关闭，生产建议 5 / 3。
-    register-max-per-ip-per-day: 0
-    register-max-per-device-per-day: 0
   interaction:
     # MACHINE_FIRST：机审通过即发布，命中 REVIEW 级敏感词才转人工
     # PRE_REVIEW   ：全部先审后发（生产建议）