feat: replace back button with invite member functionality

frontend/src/api/client.ts

@@ -20,6 +20,10 @@ import type {
   BulkOperationResponse,
   User,
   OAuthUrlResponse,
+  CreateInviteLinkRequest,
+  InviteLinkResponse,
+  ValidateInviteResponse,
+  JoinFamilyResponse,
 } from '../types';
 
 const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || '';
@@ -133,3 +137,20 @@ export const shoppingItemApi = {
   clearAll: (familyId: number) =>
     apiClient.delete<BulkOperationResponse>(`/families/${familyId}/shopping-items/clear-all`),
 };
+
+export const inviteLinkApi = {
+  create: (data: CreateInviteLinkRequest) =>
+    apiClient.post<InviteLinkResponse>('/my-family/invite-links', data),
+
+  getMyLinks: () =>
+    apiClient.get<InviteLinkResponse[]>('/my-family/invite-links'),
+
+  delete: (token: string) =>
+    apiClient.delete(`/my-family/invite-links/${token}`),
+
+  validate: (token: string) =>
+    apiClient.get<ValidateInviteResponse>(`/invite/${token}`),
+
+  join: (token: string) =>
+    apiClient.post<JoinFamilyResponse>(`/invite/${token}/join`),
+};