feat: add invoice lifecycle schema

src/lib/schemas/invoices.schema.ts

@@ -1,9 +1,13 @@
 import { z } from 'zod';
 import { moneyGbp, optionalText, requiredText } from './shared.schema';
 
+export const invoiceStatusValues = ['draft', 'sent', 'paid', 'void'] as const;
+export const invoiceStatusSchema = z.enum(invoiceStatusValues);
+
 export const invoiceCreateSchema = z.object({
 	clientId: requiredText('Client'),
 	invoiceNumber: requiredText('Invoice number', 80),
+	status: invoiceStatusSchema.default('draft'),
 	issueDate: requiredText('Issue date', 40),
 	dueDate: requiredText('Due date', 40),
 	subtotalGbp: moneyGbp,

src/lib/server/db/invoices.schema.ts

@@ -1,8 +1,10 @@
-import { index, real, sqliteTable, text } from 'drizzle-orm/sqlite-core';
+import { index, integer, real, sqliteTable, text } from 'drizzle-orm/sqlite-core';
 import { clients } from './clients.schema';
 import { organizations } from './organizations.schema';
 import { timestamps } from './shared.schema';
 
+export const invoiceStatusValues = ['draft', 'sent', 'paid', 'void'] as const;
+
 export const invoices = sqliteTable(
 	'invoices',
 	{
@@ -16,6 +18,10 @@ export const invoices = sqliteTable(
 			.notNull()
 			.references(() => clients.id, { onDelete: 'restrict' }),
 		invoiceNumber: text('invoice_number').notNull().unique(),
+		status: text('status', { enum: invoiceStatusValues }).notNull().default('draft'),
+		sentAt: integer('sent_at', { mode: 'timestamp_ms' }),
+		paidAt: integer('paid_at', { mode: 'timestamp_ms' }),
+		voidedAt: integer('voided_at', { mode: 'timestamp_ms' }),
 		issueDate: text('issue_date').notNull(),
 		dueDate: text('due_date').notNull(),
 		subtotalGbp: real('subtotal_gbp').notNull().default(0),