Support interactive add/stage input flow

app/src/main/java/solutions/tretter/githugandroid/RepoStateSaver.kt

@@ -21,6 +21,7 @@ val RepoStateSaver = listSaver<RepoState, Any>(
             state.submodules.flatMap { listOf(it.key, it.value) },
             state.maintenanceActions.toList(),
             state.fetchHeadCount,
+            state.interactiveAddSession?.let { listOf(it.target.orEmpty(), it.awaitingUpdateSelection.toString()) }.orEmpty(),
         )
     },
     restore = { saved ->
@@ -39,6 +40,7 @@ val RepoStateSaver = listSaver<RepoState, Any>(
         val submoduleParts = saved.getOrNull(13) as? List<*> ?: emptyList<Any>()
         val maintenanceActions = saved.getOrNull(14) as? List<*> ?: emptyList<Any>()
         val fetchHeadCount = saved.getOrNull(15) as? Int ?: 0
+        val interactiveAddSessionParts = saved.getOrNull(16) as? List<*> ?: emptyList<Any>()
         RepoState(
             initialized = initialized,
             headBranch = headBranch,
@@ -66,6 +68,12 @@ val RepoStateSaver = listSaver<RepoState, Any>(
             pushedTags = pushedTags.filterIsInstance<String>().toSet(),
             submodules = submoduleParts.chunked(2).associate { (it[0] as String) to (it[1] as String) },
             maintenanceActions = maintenanceActions.filterIsInstance<String>().toSet(),
+            interactiveAddSession = interactiveAddSessionParts.takeIf { it.size >= 2 }?.let {
+                InteractiveAddSession(
+                    target = (it[0] as String).ifBlank { null },
+                    awaitingUpdateSelection = (it[1] as String).toBoolean(),
+                )
+            },
         )
     }
 )