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'

resources/views/components/fuel/type-select.blade.php

@@ -1,33 +0,0 @@
-<div
-    x-data="{
-        value: '',
-        labels: {
-            petrol: 'Petrol (E10)',
-            e5: 'Super Unleaded (E5)',
-            diesel: 'Diesel',
-            b7_premium: 'Premium Diesel',
-            b10: 'B10 Biodiesel',
-            hvo: 'HVO',
-        },
-        get label() {
-            return this.labels[this.value] ?? 'Select fuel type';
-        },
-    }"
-    x-modelable="value"
-    {{ $attributes->whereStartsWith('wire:model') }}
->
-    <flux:dropdown>
-        <flux:button size="sm" icon:trailing="chevron-down">
-            <span x-text="label">Select fuel type</span>
-        </flux:button>
-
-        <flux:menu>
-            <flux:menu.item @click="value = 'petrol'">Petrol (E10)</flux:menu.item>
-            <flux:menu.item @click="value = 'e5'">Super Unleaded (E5)</flux:menu.item>
-            <flux:menu.item @click="value = 'diesel'">Diesel</flux:menu.item>
-            <flux:menu.item @click="value = 'b7_premium'">Premium Diesel</flux:menu.item>
-            <flux:menu.item @click="value = 'b10'">B10 Biodiesel</flux:menu.item>
-            <flux:menu.item @click="value = 'hvo'">HVO</flux:menu.item>
-        </flux:menu>
-    </flux:dropdown>
-</div>