feat(miniapp): refine UI and add utility bill management

- Fix collapsible padding and button spacing
- Add subtotal to balance card
- Add utility bill management for admins
- Fix lints and type checks across the monorepo
- Implement rejectPendingHouseholdMember in repository and service

packages/ports/src/household-config.ts

@@ -209,6 +209,10 @@ export interface HouseholdConfigurationRepository {
     telegramUserId: string
     isAdmin?: boolean
   }): Promise<HouseholdMemberRecord | null>
+  rejectPendingHouseholdMember(input: {
+    householdId: string
+    telegramUserId: string
+  }): Promise<boolean>
   updateHouseholdDefaultLocale(
     householdId: string,
     locale: SupportedLocale