fix(finance): add IExpense

ts/finance/expense.ts

@@ -0,0 +1,6 @@
+import { IInvoice } from './invoice';
+
+export interface IExpense {
+  invoice: IInvoice,
+  account: string
+}

ts/finance/invoice.ts

@@ -1,4 +1,4 @@
-import { IContact } from '../index';
+import { IContact } from '..';
 
 export type TInvoiceStatus = 'draft' | 'invoice' | 'paid' | 'refunded';
 
@@ -10,6 +10,7 @@ export interface IInvoiceItem {
 }
 
 export interface IInvoice {
+  pdfFile?: any;
   billedBy: IContact;
   billedTo: IContact;
   status: TInvoiceStatus;

ts/index.ts

@@ -2,7 +2,8 @@
 export * from './business/address';
 export * from './business/company';
 export * from './business/contact';
-export * from './business/invoice';
+export * from './finance/invoice';
+export * from './finance/expense';
 
 // Cloud
 export * from './cloud/dns';