Remove obsolete Livewire fuel search components and consolidate pricing tiers

- Delete unused Livewire Search test and fuel type select Blade component
- Move subscription webhook listener from EventServiceProvider to AppServiceProvider
- Add FUEL_TYPES global config to app layout for client-side use
- Add Billable trait to User model and include email_verified_at in fillable
- Implement monthly/annual cadence toggle with pricing display and smart CTA routing on homepage
- Update VerifyApiKeyMiddlewareTest to use e10 instead of petrol
- Refactor PollFuelPrices to auto-refresh stale stations based on last_seen_at
- Add incremental polling with cached timestamp and effective-start-timestamp param to FuelPriceService
- Normalize amenities/fuel_types from API objects to flat arrays, skip stations missing required fields
- Log response body on API failures in ApiLogger
- Default homepage sort to 'reliable' instead of 'price'

tests/Unit/ApiLoggerTest.php

@@ -40,6 +40,16 @@ it('logs a failed request and re-throws the exception', function (): void {
         ->and($log->error)->toBe('connection refused');
 });
 
+it('captures response body as error when status is 4xx/5xx', function (): void {
+    Http::fake(['https://example.com/missing' => Http::response('Not Found', 404)]);
+
+    $this->apiLogger->send('test_service', 'GET', 'https://example.com/missing', fn () => Http::get('https://example.com/missing'));
+
+    $log = ApiLog::first();
+    expect($log->status_code)->toBe(404)
+        ->and($log->error)->toBe('Not Found');
+});
+
 it('logs a POST request with correct method', function (): void {
     Http::fake(['https://example.com/token' => Http::response(['token' => 'abc'], 201)]);