feat(cache): implement Redis caching for search & analytics hot paths

- Add TTL-specific cache durations: district stats (5min), market report (15min), heatmap (5min)
- Add Redis caching to GeoSearch handler with 60s TTL
- Add cache invalidation on listing.approved, listing.updated, listing.deactivated, listing.sold events
- Invalidate search, geo_search, and all analytics cache prefixes on listing state changes
- Update tests for new CacheService dependency in event handler and geo-search handler

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/components/ui/__tests__/select.spec.tsx

@@ -0,0 +1,40 @@
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { describe, expect, it, vi } from 'vitest';
+import { Select } from '../select';
+
+describe('Select', () => {
+  it('renders with options', () => {
+    render(
+      <Select aria-label="Property type">
+        <option value="">Chọn loại</option>
+        <option value="APARTMENT">Căn hộ</option>
+        <option value="HOUSE">Nhà phố</option>
+      </Select>,
+    );
+    expect(screen.getByRole('combobox', { name: 'Property type' })).toBeInTheDocument();
+    expect(screen.getAllByRole('option')).toHaveLength(3);
+  });
+
+  it('handles value change', async () => {
+    const onChange = vi.fn();
+    render(
+      <Select aria-label="Type" onChange={onChange}>
+        <option value="">Chọn</option>
+        <option value="SALE">Bán</option>
+        <option value="RENT">Cho thuê</option>
+      </Select>,
+    );
+    await userEvent.selectOptions(screen.getByRole('combobox'), 'SALE');
+    expect(onChange).toHaveBeenCalled();
+  });
+
+  it('is disabled when disabled prop is set', () => {
+    render(
+      <Select disabled aria-label="Disabled select">
+        <option>Option</option>
+      </Select>,
+    );
+    expect(screen.getByRole('combobox')).toBeDisabled();
+  });
+});