feat(companies): service + validators + unit tests

src/lib/validators/companies.ts

@@ -0,0 +1,26 @@
+import { z } from 'zod';
+import { baseListQuerySchema } from '@/lib/api/route-helpers';
+
+export const createCompanySchema = z.object({
+  name: z.string().min(1).max(200),
+  legalName: z.string().optional(),
+  taxId: z.string().optional(),
+  registrationNumber: z.string().optional(),
+  incorporationCountry: z.string().optional(),
+  incorporationDate: z.coerce.date().optional(),
+  status: z.enum(['active', 'dissolved']).optional().default('active'),
+  billingEmail: z.string().email().optional(),
+  notes: z.string().optional(),
+  tagIds: z.array(z.string()).optional().default([]),
+});
+
+export const updateCompanySchema = createCompanySchema.partial().omit({ tagIds: true });
+
+export const listCompaniesSchema = baseListQuerySchema.extend({
+  status: z.enum(['active', 'dissolved']).optional(),
+  search: z.string().optional(),
+});
+
+export type CreateCompanyInput = z.infer<typeof createCompanySchema>;
+export type UpdateCompanyInput = z.infer<typeof updateCompanySchema>;
+export type ListCompaniesInput = z.infer<typeof listCompaniesSchema>;