feat(insurance): redesign insurance management page to match Figma

Rebuild the /admin/insurance-pricing contracts UI to the Figma "مدیریت بیمه"
design and inject the coverage/franchise/ceiling fields the design omitted.

Backend:
- Add contract-level `kind` column to TenantInsurance (basic|supplementary),
  defaulting to the catalog type; migration Version20260715093358.
- POST/PATCH /billing/tenant-insurances now accept effective_from,
  effective_to, kind; PATCH also toggles is_active without clobbering the
  user-set effective_to (unlike DELETE/deactivate).
- List returns the latest version of every insurance (active + inactive) via
  TenantInsuranceRepository::findLatestByTenant, for the فعال/غیرفعال toggle.

Frontend:
- New InsuranceModal (ui/Modal + SearchableSelect + PersianDateInput) with the
  seven fields; submit "ثبت بیمه".
- TenantInsuranceContracts rebuilt: header + search box, desktop table
  (ردیف/نام/کد/نوع/وضعیت/عملیات) and mobile cards, status toggle -> PATCH.
- utils: isoToUnix/unixToIso helpers for contract dates.

Tests: TenantInsuranceContractApiTest (create/edit/toggle/list, 5 cases),
InsuranceModal + TenantInsuranceContracts vitest suites, docs/api updated.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

assets/admin/components/InsuranceModal.test.tsx

@@ -0,0 +1,79 @@
+import { describe, it, expect, vi } from 'vitest';
+import { screen, fireEvent } from '@testing-library/react';
+import { renderWithProviders } from '../test/utils';
+import InsuranceModal, {
+  buildInsurancePayload, contractToForm, EMPTY_FORM, type Contract, type InsuranceOption,
+} from './InsuranceModal';
+
+const mkContract = (over: Partial<Contract> = {}): Contract => ({
+  uuid: 'c-1', insurance_id: 3, insurance_name: 'بیمه ایران', insurance_kind: 'basic',
+  version: 1, is_active: true, coverage_percent: 70, franchise_rials: 500_000,
+  annual_ceiling_rials: 20_000_000, kind: 'basic', effective_from: 1_700_000_000,
+  effective_to: null, ...over,
+});
+
+const options: InsuranceOption[] = [
+  { insurance_id: 3, insurance_name: 'بیمه ایران', type: 'basic' },
+  { insurance_id: 5, insurance_name: 'بیمه آسیا', type: 'supplementary' },
+];
+
+describe('buildInsurancePayload', () => {
+  it('converts toman → rials, percent, and Y-m-d → unix', () => {
+    const payload = buildInsurancePayload({
+      ...EMPTY_FORM, insuranceId: '3', kind: 'supplementary',
+      coverage: '80', franchise: '50000', ceiling: '2000000',
+      effectiveFrom: '2024-01-01', effectiveTo: '2025-01-01',
+    });
+    expect(payload.insurance_id).toBe(3);
+    expect(payload.kind).toBe('supplementary');
+    expect(payload.coverage_percent).toBe(80);
+    expect(payload.franchise_rials).toBe(500_000); // 50000 toman × 10
+    expect(payload.annual_ceiling_rials).toBe(20_000_000);
+    expect(typeof payload.effective_from).toBe('number');
+    expect(payload.effective_to).toBeGreaterThan(payload.effective_from!);
+  });
+
+  it('empty ceiling → null (بی‌نهایت), empty dates → null', () => {
+    const payload = buildInsurancePayload({ ...EMPTY_FORM, insuranceId: '3', coverage: '50' });
+    expect(payload.annual_ceiling_rials).toBeNull();
+    expect(payload.effective_from).toBeNull();
+    expect(payload.effective_to).toBeNull();
+  });
+});
+
+describe('contractToForm', () => {
+  it('maps rials → toman and uses contract kind', () => {
+    const form = contractToForm(mkContract({ franchise_rials: 300_000, kind: 'supplementary' }));
+    expect(form.franchise).toBe('30000');
+    expect(form.kind).toBe('supplementary');
+    expect(form.coverage).toBe('70');
+  });
+});
+
+describe('InsuranceModal', () => {
+  it('renders all seven fields in add mode', () => {
+    renderWithProviders(
+      <InsuranceModal open editContract={null} options={options} onClose={() => {}} onSubmit={() => {}} />,
+    );
+    expect(screen.getByText('افزودن بیمه')).toBeInTheDocument();
+    expect(screen.getByText('نام بیمه')).toBeInTheDocument();
+    expect(screen.getByText('نوع بیمه')).toBeInTheDocument();
+    expect(screen.getByText('تاریخ شروع قرارداد')).toBeInTheDocument();
+    expect(screen.getByText('تاریخ پایان قرارداد')).toBeInTheDocument();
+    expect(screen.getByText('درصد پوشش')).toBeInTheDocument();
+    expect(screen.getByText('فرانشیز (تومان)')).toBeInTheDocument();
+    expect(screen.getByText('سقف تعهد (تومان)')).toBeInTheDocument();
+    expect(screen.getByText('ثبت بیمه')).toBeInTheDocument();
+  });
+
+  it('submits the built payload for an edited contract', () => {
+    const onSubmit = vi.fn();
+    renderWithProviders(
+      <InsuranceModal open editContract={mkContract()} options={options} onClose={() => {}} onSubmit={onSubmit} />,
+    );
+    fireEvent.click(screen.getByText('ثبت بیمه'));
+    expect(onSubmit).toHaveBeenCalledWith(expect.objectContaining({
+      insurance_id: 3, coverage_percent: 70, franchise_rials: 500_000, kind: 'basic',
+    }));
+  });
+});