core: support down migrations to allow reverting to the previous version (#2072)

* core: support down migrations to allow reverting to the previous version

* update schema

* update simplexmq

* rename errors

* remove unused functions

* migration UI, test migration

* update migration UI

* return current migrations in CRVersionInfo

* update simplexmq

* test down migrations

* cleanup ios

* show migrations in log

src/Simplex/Chat/Controller.hs

@@ -49,7 +49,7 @@ import Simplex.Messaging.Agent.Client (AgentLocks, SMPTestFailure)
 import Simplex.Messaging.Agent.Env.SQLite (AgentConfig, NetworkConfig)
 import Simplex.Messaging.Agent.Lock
 import Simplex.Messaging.Agent.Protocol
-import Simplex.Messaging.Agent.Store.SQLite (SQLiteStore)
+import Simplex.Messaging.Agent.Store.SQLite (MigrationConfirmation, SQLiteStore, UpMigration)
 import qualified Simplex.Messaging.Crypto as C
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Notifications.Protocol (DeviceToken (..), NtfTknStatus)
@@ -101,7 +101,7 @@ coreVersionInfo buildTimestamp simplexmqCommit =
 
 data ChatConfig = ChatConfig
   { agentConfig :: AgentConfig,
-    yesToMigrations :: Bool,
+    confirmMigrations :: MigrationConfirmation,
     defaultServers :: DefaultAgentServers,
     tbqSize :: Natural,
     fileChunkSize :: Integer,
@@ -415,7 +415,7 @@ data ChatResponse
   | CRUserProfile {user :: User, profile :: Profile}
   | CRUserProfileNoChange {user :: User}
   | CRUserPrivacy {user :: User}
-  | CRVersionInfo {versionInfo :: CoreVersionInfo}
+  | CRVersionInfo {versionInfo :: CoreVersionInfo, chatMigrations :: [UpMigration], agentMigrations :: [UpMigration]}
   | CRInvitation {user :: User, connReqInvitation :: ConnReqInvitation}
   | CRSentConfirmation {user :: User}
   | CRSentInvitation {user :: User, customUserProfile :: Maybe Profile}