feat(companies): service + validators + unit tests

tests/unit/validators.test.ts

@@ -6,6 +6,7 @@ import { createInvoiceSchema } from '@/lib/validators/invoices';
 import { createWebhookSchema, updateWebhookSchema } from '@/lib/validators/webhooks';
 import { createFieldSchema, updateFieldSchema } from '@/lib/validators/custom-fields';
 import { createYachtSchema, transferOwnershipSchema } from '@/lib/validators/yachts';
+import { createCompanySchema } from '@/lib/validators/companies';
 
 // ─── Client schemas ───────────────────────────────────────────────────────────
 
@@ -415,3 +416,41 @@ describe('transferOwnershipSchema', () => {
     expect(result.success).toBe(true);
   });
 });
+
+// ─── Company schemas ──────────────────────────────────────────────────────────
+
+describe('createCompanySchema', () => {
+  it('rejects empty name', () => {
+    const result = createCompanySchema.safeParse({ name: '' });
+    expect(result.success).toBe(false);
+  });
+
+  it('rejects invalid billingEmail', () => {
+    const result = createCompanySchema.safeParse({
+      name: 'Aegean Holdings',
+      billingEmail: 'not-an-email',
+    });
+    expect(result.success).toBe(false);
+  });
+
+  it('accepts minimal valid input', () => {
+    const result = createCompanySchema.safeParse({ name: 'Aegean Holdings' });
+    expect(result.success).toBe(true);
+  });
+
+  it('accepts full valid input', () => {
+    const result = createCompanySchema.safeParse({
+      name: 'Aegean Holdings',
+      legalName: 'Aegean Holdings Ltd.',
+      taxId: 'GR123456789',
+      registrationNumber: 'REG-001',
+      incorporationCountry: 'GR',
+      incorporationDate: '2010-04-15',
+      status: 'active',
+      billingEmail: 'billing@aegean.example',
+      notes: 'Longtime customer',
+      tagIds: ['tag-1', 'tag-2'],
+    });
+    expect(result.success).toBe(true);
+  });
+});