[+][FCB] Use the sharedFolderCid at fed mem information level rather than the changelog

+ There is a potential race condition here when using changelog. Not the case with fed mem information
+ It's simpler on domain terms. I have a contract for current shared folder CID I rely on it, do not trust the changelog, it only represents the bookkeeping, not processed state

federation-controller-backend/src/main/scala/acab/devcon0/domain/adapters/federation/IpfsCidDeltaQueryHandlerImpl.scala

@@ -5,8 +5,8 @@ import acab.devcon0.domain.ports.input._
 import acab.devcon0.domain.ports.input.federation.IpfsCidDeltaQuery
 import acab.devcon0.domain.ports.input.federation.IpfsCidDeltaQueryHandler
 import acab.devcon0.domain.service._
-import acab.devcon0.domain.service.federationmember.ChangelogService
 import acab.devcon0.domain.service.federationmember.CidsService
+import acab.devcon0.domain.service.federationmember.InformationService
 import acab.devcon0.trile.domain.dtos.aliases.FederationMemberId
 import acab.devcon0.trile.domain.dtos.aliases.IpfsCid
 import cats.effect.IO
@@ -16,7 +16,7 @@ import org.typelevel.log4cats.slf4j.Slf4jLogger
 
 class IpfsCidDeltaQueryHandlerImpl(
     federationMemberCidsService: CidsService[IO],
-    federationMemberChangelogService: ChangelogService[IO]
+    federationMemberInformationService: InformationService[IO]
 ) extends IpfsCidDeltaQueryHandler {
 
   implicit val logger: Logger[IO] = Slf4jLogger.getLogger[IO]
@@ -34,7 +34,7 @@ class IpfsCidDeltaQueryHandlerImpl(
   }
 
   private def getExistsInOtherMembers(ipfsCids: List[IpfsCid], id: FederationMemberId): IO[List[IpfsCid]] = {
-    getOtherMembersRootCid(id)
+    getOtherMembersSharedFolderCid(id)
       .flatMap(getExistingInOtherMembers(ipfsCids, _))
   }
 
@@ -42,15 +42,14 @@ class IpfsCidDeltaQueryHandlerImpl(
       ipfsCids: List[IpfsCid],
       membersRootIpfsCid: List[(FederationMemberId, IpfsCid)]
   ): IO[List[IpfsCid]] = {
-    for
-      existsResult: List[(IpfsCid, Boolean)] <- membersRootIpfsCid
+    for existsResult: List[(IpfsCid, Boolean)] <- membersRootIpfsCid
         .flatTraverse(tuple => federationMemberCidsService.exists(tuple._1, tuple._2, ipfsCids))
     yield existsResult.filter(_._2).map(_._1)
 
   }
 
-  private def getOtherMembersRootCid(id: FederationMemberId): IO[List[(FederationMemberId, IpfsCid)]] = {
-    federationMemberChangelogService.getNewest
-      .map(_.filterNot(_._1 == id).map(tuple => (tuple._1, tuple._2.ipfsCid)))
+  private def getOtherMembersSharedFolderCid(id: FederationMemberId): IO[List[(FederationMemberId, IpfsCid)]] = {
+    federationMemberInformationService.getAll
+      .map(_.filter(_.id.equals(id)).map(information => (information.id, information.sharedFolderCid)))
   }
 }