feat(miniapp): add admin billing settings foundation

packages/application/src/miniapp-admin-service.test.ts

@@ -102,11 +102,131 @@ function repository(): HouseholdConfigurationRepository {
             householdDefaultLocale: 'ru',
             isAdmin: false
           }
+        : null,
+    getHouseholdBillingSettings: async (householdId) => ({
+      householdId,
+      rentAmountMinor: null,
+      rentCurrency: 'USD',
+      rentDueDay: 20,
+      rentWarningDay: 17,
+      utilitiesDueDay: 4,
+      utilitiesReminderDay: 3,
+      timezone: 'Asia/Tbilisi'
+    }),
+    updateHouseholdBillingSettings: async (input) => ({
+      householdId: input.householdId,
+      rentAmountMinor: input.rentAmountMinor ?? null,
+      rentCurrency: input.rentCurrency ?? 'USD',
+      rentDueDay: input.rentDueDay ?? 20,
+      rentWarningDay: input.rentWarningDay ?? 17,
+      utilitiesDueDay: input.utilitiesDueDay ?? 4,
+      utilitiesReminderDay: input.utilitiesReminderDay ?? 3,
+      timezone: input.timezone ?? 'Asia/Tbilisi'
+    }),
+    listHouseholdUtilityCategories: async () => [],
+    upsertHouseholdUtilityCategory: async (input) => ({
+      id: input.slug ?? 'utility-category-1',
+      householdId: input.householdId,
+      slug: input.slug ?? 'custom',
+      name: input.name,
+      sortOrder: input.sortOrder,
+      isActive: input.isActive
+    }),
+    promoteHouseholdAdmin: async (householdId, memberId) =>
+      memberId === 'member-123456'
+        ? {
+            id: memberId,
+            householdId,
+            telegramUserId: '123456',
+            displayName: 'Stan',
+            preferredLocale: null,
+            householdDefaultLocale: 'ru',
+            isAdmin: true
+          }
         : null
   }
 }
 
 describe('createMiniAppAdminService', () => {
+  test('returns billing settings, utility categories, and members for admins', async () => {
+    const service = createMiniAppAdminService(repository())
+
+    const result = await service.getSettings({
+      householdId: 'household-1',
+      actorIsAdmin: true
+    })
+
+    expect(result).toEqual({
+      status: 'ok',
+      settings: {
+        householdId: 'household-1',
+        rentAmountMinor: null,
+        rentCurrency: 'USD',
+        rentDueDay: 20,
+        rentWarningDay: 17,
+        utilitiesDueDay: 4,
+        utilitiesReminderDay: 3,
+        timezone: 'Asia/Tbilisi'
+      },
+      categories: [],
+      members: []
+    })
+  })
+
+  test('updates billing settings for admins', async () => {
+    const service = createMiniAppAdminService(repository())
+
+    const result = await service.updateSettings({
+      householdId: 'household-1',
+      actorIsAdmin: true,
+      rentAmountMajor: '700',
+      rentCurrency: 'USD',
+      rentDueDay: 21,
+      rentWarningDay: 18,
+      utilitiesDueDay: 5,
+      utilitiesReminderDay: 4,
+      timezone: 'Asia/Tbilisi'
+    })
+
+    expect(result).toEqual({
+      status: 'ok',
+      settings: {
+        householdId: 'household-1',
+        rentAmountMinor: 70000n,
+        rentCurrency: 'USD',
+        rentDueDay: 21,
+        rentWarningDay: 18,
+        utilitiesDueDay: 5,
+        utilitiesReminderDay: 4,
+        timezone: 'Asia/Tbilisi'
+      }
+    })
+  })
+
+  test('upserts utility categories for admins', async () => {
+    const service = createMiniAppAdminService(repository())
+
+    const result = await service.upsertUtilityCategory({
+      householdId: 'household-1',
+      actorIsAdmin: true,
+      name: 'Internet',
+      sortOrder: 0,
+      isActive: true
+    })
+
+    expect(result).toEqual({
+      status: 'ok',
+      category: {
+        id: 'utility-category-1',
+        householdId: 'household-1',
+        slug: 'custom',
+        name: 'Internet',
+        sortOrder: 0,
+        isActive: true
+      }
+    })
+  })
+
   test('lists pending members for admins', async () => {
     const service = createMiniAppAdminService(repository())
 
@@ -167,4 +287,27 @@ describe('createMiniAppAdminService', () => {
       }
     })
   })
+
+  test('promotes an active member to household admin', async () => {
+    const service = createMiniAppAdminService(repository())
+
+    const result = await service.promoteMemberToAdmin({
+      householdId: 'household-1',
+      actorIsAdmin: true,
+      memberId: 'member-123456'
+    })
+
+    expect(result).toEqual({
+      status: 'ok',
+      member: {
+        id: 'member-123456',
+        householdId: 'household-1',
+        telegramUserId: '123456',
+        displayName: 'Stan',
+        preferredLocale: null,
+        householdDefaultLocale: 'ru',
+        isAdmin: true
+      }
+    })
+  })
 })