feat: add types for ContactImportResponse and ImportContactsRequest to support contact import functionality

Author: narekhovhannisyan

src/types/api/contact-imports.ts

@@ -0,0 +1,21 @@
+export type ContactImportResponse = {
+  id: number;
+  status: "created" | "started" | "finished" | "failed";
+  created_contacts_count?: number;
+  updated_contacts_count?: number;
+  contacts_over_limit_count?: number;
+};
+
+export type ImportContactsRequest = {
+  contacts: {
+    email: string;
+    fields?: {
+      first_name?: string;
+      last_name?: string;
+      zip_code?: number;
+      [key: string]: string | number | undefined;
+    };
+    list_ids_included?: number[];
+    list_ids_excluded?: number[];
+  }[];
+};