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

apps/bot/src/miniapp-locale.test.ts

@@ -109,6 +109,7 @@ function repository(): HouseholdConfigurationRepository {
     },
     listPendingHouseholdMembers: async () => [],
     approvePendingHouseholdMember: async () => null,
+    rejectPendingHouseholdMember: async () => false,
     updateHouseholdDefaultLocale: async (_householdId, locale) => {
       household.defaultLocale = locale
       for (const [id, member] of members.entries()) {