=== B-1 — Redis 를 붙인 뒤 자동구성이 실제로 바뀌었는가 ===
  빈 수: 321 → 402  (+81)

  --- 세션 저장소 관련 (새로 생긴 것) ---
    ★ cookieSerializer                           -> DefaultCookieSerializer
    ★ org.springframework.boot.autoconfigure.session.RedisSessionConfiguration -> RedisSessionConfiguration
    ★ org.springframework.boot.autoconfigure.session.RedisSessionConfiguration$DefaultRedisSessionConfiguration -> RedisSessionConfiguration$DefaultRedisSessionConfiguration
    ★ org.springframework.boot.autoconfigure.session.SessionAutoConfiguration -> SessionAutoConfiguration
    ★ org.springframework.boot.autoconfigure.session.SessionAutoConfiguration$ServletSessionConfiguration -> SessionAutoConfiguration$ServletSessionConfiguration
    ★ org.springframework.boot.autoconfigure.session.SessionAutoConfiguration$ServletSessionConfiguration$RememberMeServicesConfiguration -> SessionAutoConfiguration$ServletSessionConfiguration$RememberMeServicesConfiguration
    ★ org.springframework.boot.autoconfigure.session.SessionAutoConfiguration$ServletSessionConfiguration$ServletSessionRepositoryConfiguration -> SessionAutoConfiguration$ServletSessionConfiguration$ServletSessionRepositoryConfiguration
    ★ org.springframework.boot.autoconfigure.session.SessionRepositoryFilterConfiguration -> SessionRepositoryFilterConfiguration
    ★ org.springframework.session.config.annotation.web.http.SpringHttpSessionConfiguration -> SpringHttpSessionConfiguration
    ★ org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration -> RedisHttpSessionConfiguration
    ★ rememberMeServicesCookieSerializerCustomizer -> SessionAutoConfiguration$ServletSessionConfiguration$RememberMeServicesConfiguration$$Lambda/0x00007f364e69fa60
    ★ sessionEventHttpSessionListenerAdapter     -> SessionEventHttpSessionListenerAdapter
    ★ sessionRepository                          -> RedisSessionRepository
    ★ sessionRepositoryFilterRegistration        -> DelegatingFilterProxyRegistrationBean
    ★ spring.session-org.springframework.boot.autoconfigure.session.SessionProperties -> SessionProperties
    ★ spring.session.redis-org.springframework.boot.autoconfigure.session.RedisSessionProperties -> RedisSessionProperties
    ★ springBootSessionRepositoryCustomizer      -> RedisSessionConfiguration$DefaultRedisSessionConfiguration$$Lambda/0x00007f364e6a4a68
    ★ springSessionRepositoryFilter              -> SessionRepositoryFilter

  --- OAuth2 authorized client — 바뀌었는가? ---
    authorizedClientService
      before: InMemoryOAuth2AuthorizedClientService
      after : InMemoryOAuth2AuthorizedClientService    그대로 — Redis 로 안 옮겨졌다
    authorizedClientRepository
      before: AuthenticatedPrincipalOAuth2AuthorizedClientRepository
      after : AuthenticatedPrincipalOAuth2AuthorizedClientRepository    그대로 — Redis 로 안 옮겨졌다
    authorizedClientManager
      before: AuthorizedClientServiceOAuth2AuthorizedClientManager
      after : AuthorizedClientServiceOAuth2AuthorizedClientManager    그대로 — Redis 로 안 옮겨졌다

  --- Redis 연결 빈 (새로 생긴 것) ---
    ★ keyValueMappingContext                     -> RedisMappingContext
    ★ lettuceMetrics                             -> LettuceMetricsAutoConfiguration$$Lambda/0x00007f364e56f4d0
    ★ org.springframework.boot.actuate.autoconfigure.data.redis.RedisHealthContributorAutoConfiguration -> RedisHealthContributorAutoConfiguration
    ★ org.springframework.boot.actuate.autoconfigure.data.redis.RedisReactiveHealthContributorAutoConfiguration -> RedisReactiveHealthContributorAutoConfiguration
    ★ org.springframework.boot.actuate.autoconfigure.metrics.redis.LettuceMetricsAutoConfiguration -> LettuceMetricsAutoConfiguration
    ★ org.springframework.boot.autoconfigure.data.redis.LettuceConnectionConfiguration -> LettuceConnectionConfiguration
    ★ org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration -> RedisAutoConfiguration
    ★ org.springframework.boot.autoconfigure.data.redis.RedisReactiveAutoConfiguration -> RedisReactiveAutoConfiguration
    ★ org.springframework.boot.autoconfigure.data.redis.RedisRepositoriesAutoConfiguration -> RedisRepositoriesAutoConfiguration
    ★ org.springframework.boot.autoconfigure.session.RedisSessionConfiguration -> RedisSessionConfiguration
    ★ org.springframework.boot.autoconfigure.session.RedisSessionConfiguration$DefaultRedisSessionConfiguration -> RedisSessionConfiguration$DefaultRedisSessionConfiguration
    ★ org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration -> RedisHttpSessionConfiguration
    ★ reactiveRedisTemplate                      -> ReactiveRedisTemplate
    ★ reactiveStringRedisTemplate                -> ReactiveStringRedisTemplate
    ★ redisConnectionDetails                     -> PropertiesRedisConnectionDetails
    ★ redisConnectionFactory                     -> LettuceConnectionFactory
    ★ redisConverter                             -> MappingRedisConverter
    ★ redisCustomConversions                     -> RedisCustomConversions
    ★ redisHealthContributor                     -> RedisReactiveHealthIndicator
    ★ redisKeyValueAdapter                       -> RedisKeyValueAdapter
    ★ redisKeyValueTemplate                      -> RedisKeyValueTemplate
    ★ redisMappingConfiguration#0                -> MappingConfiguration
    ★ redisReferenceResolver                     -> ReferenceResolverImpl
    ★ redisTemplate                              -> RedisTemplate
    ★ sessionRepository                          -> RedisSessionRepository
    ★ spring.data.redis-org.springframework.boot.autoconfigure.data.redis.RedisProperties -> RedisProperties
    ★ spring.session.redis-org.springframework.boot.autoconfigure.session.RedisSessionProperties -> RedisSessionProperties
    ★ springBootSessionRepositoryCustomizer      -> RedisSessionConfiguration$DefaultRedisSessionConfiguration$$Lambda/0x00007f364e6a4a68
    ★ stringRedisTemplate                        -> StringRedisTemplate