feat: implement Marco's customer changes

- Remove 'Flotte ansehen' button from hero section
- Remove '24/7 Support' stat from hero section
- Remove 'Unsere Flotte' eyebrow from fleet section
- Remove ALL 'Warum wir' / 'Why us' references from nav links, i18n keys, and legal pages
- Update reviews: Ferrari references only (removed GT3 mentions)
- Update Impressum with correct company data (MC Cars GmbH)
- Add multi-photo gallery: DB migration (17-vehicle-photos.sql), admin UI for photo management, frontend carousel on cards and dialog
- Update SEO: Ferrari-focused meta tags, title, keywords, JSON-LD
- Clean up dead i18n keys (viewFleet, statSupport, fleetEyebrow, navWhy, why* keys)
- Fix legal page issues: add config.js script, fix logo references to SVG
- Add Playwright E2E tests (26/26 passing)
- Update footer tagline across all pages

tests/legal-pages.spec.js

@@ -0,0 +1,36 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Legal Pages - Warum wir removed', () => {
+
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/');
+    await page.waitForLoadState('domcontentloaded');
+  });
+
+  test('Impressum page - Warum wir nav link removed', async ({ page }) => {
+    await page.goto('/impressum.html');
+    await expect(page.getByText('Warum wir')).not.toBeVisible();
+  });
+
+  test('AGB page - Warum wir nav link removed', async ({ page }) => {
+    await page.goto('/agb.html');
+    await expect(page.getByText('Warum wir')).not.toBeVisible();
+  });
+
+  test('Datenschutz page - Warum wir nav link removed', async ({ page }) => {
+    await page.goto('/datenschutz.html');
+    await expect(page.getByText('Warum wir')).not.toBeVisible();
+  });
+
+  test('Mietbedingungen page - Warum wir nav link removed', async ({ page }) => {
+    await page.goto('/mietbedingungen.html');
+    await expect(page.getByText('Warum wir')).not.toBeVisible();
+  });
+
+  test('All legal pages - other nav links present', async ({ page }) => {
+    await page.goto('/impressum.html');
+    const nav = page.getByLabel('Hauptnavigation');
+    await expect(nav.getByRole('link', { name: 'Fahrzeuge' }).first()).toBeVisible();
+    await expect(nav.getByRole('link', { name: 'Buchen' }).first()).toBeVisible();
+  });
+});