stream 装配此前仅 @ConditionalOnClass,缺 StringRedisTemplate Bean 时 (如 exclude RedisAutoConfiguration)会因构造参数缺依赖而启动失败。加 @ConditionalOnBean(StringRedisTemplate) 使整类 back off,与 cache 一致; 顺带 @Configuration(proxyBeanMethods=false) 对齐风格。补 3 个装配测试。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>