feat(bot): add safe group unsetup flow

packages/ports/src/household-config.ts

@@ -103,6 +103,7 @@ export interface HouseholdConfigurationRepository {
     telegramThreadId: string
   }): Promise<HouseholdTopicBindingRecord | null>
   listHouseholdTopicBindings(householdId: string): Promise<readonly HouseholdTopicBindingRecord[]>
+  clearHouseholdTopicBindings(householdId: string): Promise<void>
   listReminderTargets(): Promise<readonly ReminderTarget[]>
   upsertHouseholdJoinToken(input: {
     householdId: string

packages/ports/src/telegram-pending-actions.ts

@@ -23,4 +23,8 @@ export interface TelegramPendingActionRepository {
     telegramUserId: string
   ): Promise<TelegramPendingActionRecord | null>
   clearPendingAction(telegramChatId: string, telegramUserId: string): Promise<void>
+  clearPendingActionsForChat(
+    telegramChatId: string,
+    action?: TelegramPendingActionType
+  ): Promise<void>
 }