Remove prediction API endpoint and integrate into stations search

Consolidate prediction functionality by merging /api/prediction endpoint into /api/stations response. Move prediction logic from PredictionController into StationController, returning prediction data alongside station results. Replace usePrediction composable with unified useStations that returns {stations, meta, prediction}. Remove PredictionRequest, related tests, and unused Vue components (FuelFinderTest, MapTest, RecommendationTest, StationListTest). Add PredictionFull component and UpsellBanner. Extend NationalFuelPredictionService to include weekly_summary (7-day series, yesterday/today averages, cheapest/priciest days) and oil signal from price_predictions table. Update Home.vue to consume prediction from stations response. Add Plan::resolveCadenceForUser helper and configure Cashier to use custom Subscription model.

tests/Feature/Api/AuthControllerTest.php

@@ -1,5 +1,6 @@
 <?php
 
+use App\Models\Plan;
 use App\Models\User;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 
@@ -68,6 +69,146 @@ it('returns the authenticated user on /me', function () {
         ->assertJsonPath('email', $user->email);
 });
 
+it('reports subscription_cancelled=false for a user with no subscription', function () {
+    $user = User::factory()->create();
+
+    $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', false);
+});
+
+it('reports subscription_cancelled=false for an active paid subscription', function () {
+    $user = User::factory()->create();
+
+    $user->subscriptions()->create([
+        'type' => 'default',
+        'stripe_id' => 'sub_active',
+        'stripe_status' => 'active',
+        'stripe_price' => 'price_plus_monthly',
+        'quantity' => 1,
+    ]);
+
+    $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', false);
+});
+
+it('reports subscription_cancelled=true once the subscription is set to end at period end', function () {
+    $user = User::factory()->create();
+
+    $user->subscriptions()->create([
+        'type' => 'default',
+        'stripe_id' => 'sub_cancelling',
+        'stripe_status' => 'active',
+        'stripe_price' => 'price_plus_monthly',
+        'quantity' => 1,
+        'ends_at' => now()->addDays(20),
+    ]);
+
+    $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', true);
+});
+
+it('exposes subscribed_at, cadence and renewal date for an active monthly subscription', function () {
+    Plan::create([
+        'name' => 'plus',
+        'stripe_price_id_monthly' => 'price_plus_monthly_test',
+        'stripe_price_id_annual' => 'price_plus_annual_test',
+        'features' => ['fuel_types' => ['max' => 1]],
+        'active' => true,
+    ]);
+
+    $user = User::factory()->create();
+
+    $subscribedAt = now()->subDays(10)->startOfSecond();
+    $renewalAt = now()->addDays(20)->startOfSecond();
+
+    $user->subscriptions()->create([
+        'type' => 'default',
+        'stripe_id' => 'sub_monthly_active',
+        'stripe_status' => 'active',
+        'stripe_price' => 'price_plus_monthly_test',
+        'quantity' => 1,
+        'current_period_end' => $renewalAt,
+        'created_at' => $subscribedAt,
+        'updated_at' => $subscribedAt,
+    ]);
+
+    $response = $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', false)
+        ->assertJsonPath('subscription_cadence', 'monthly');
+
+    expect($response->json('subscribed_at'))->toStartWith($subscribedAt->toDateString());
+    expect($response->json('subscription_expires_at'))->toStartWith($renewalAt->toDateString());
+});
+
+it('reports cadence as annual when the active price is the annual one', function () {
+    Plan::create([
+        'name' => 'pro',
+        'stripe_price_id_monthly' => 'price_pro_monthly_test',
+        'stripe_price_id_annual' => 'price_pro_annual_test',
+        'features' => ['fuel_types' => ['max' => null]],
+        'active' => true,
+    ]);
+
+    $user = User::factory()->create();
+
+    $user->subscriptions()->create([
+        'type' => 'default',
+        'stripe_id' => 'sub_annual_active',
+        'stripe_status' => 'active',
+        'stripe_price' => 'price_pro_annual_test',
+        'quantity' => 1,
+    ]);
+
+    $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cadence', 'annual');
+});
+
+it('uses ends_at as the expiry date when subscription is cancelled', function () {
+    $user = User::factory()->create();
+
+    $endsAt = now()->addDays(15)->startOfSecond();
+    $renewalAt = now()->addDays(30)->startOfSecond();
+
+    $user->subscriptions()->create([
+        'type' => 'default',
+        'stripe_id' => 'sub_cancelling_with_period',
+        'stripe_status' => 'active',
+        'stripe_price' => 'price_plus_monthly',
+        'quantity' => 1,
+        'ends_at' => $endsAt,
+        'current_period_end' => $renewalAt,
+    ]);
+
+    $response = $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', true);
+
+    expect($response->json('subscription_expires_at'))->toStartWith($endsAt->toDateString());
+});
+
+it('returns null subscription metadata for users with no subscription', function () {
+    $user = User::factory()->create();
+
+    $this->actingAs($user, 'sanctum')
+        ->getJson('/api/auth/me')
+        ->assertOk()
+        ->assertJsonPath('subscription_cancelled', false)
+        ->assertJsonPath('subscription_cadence', null)
+        ->assertJsonPath('subscribed_at', null)
+        ->assertJsonPath('subscription_expires_at', null);
+});
+
 it('logs out and revokes the token', function () {
     $user = User::factory()->create();
     $token = $user->createToken('api')->plainTextToken;