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.

resources/js/views/Home.vue

@@ -39,7 +39,7 @@
                 <!-- Prediction box (sits above filter results) -->
                 <PredictionCard
                     :is-paid-tier="showFullPrediction"
-                    :loading="predictionLoading"
+                    :loading="loading"
                     :prediction="prediction"
                 />
 
@@ -81,6 +81,7 @@
                             :radius-miles="radiusMiles"
                             :stations="filteredStations"
                         />
+                        <UpsellBanner :station-count="liveStats.stationCount" />
                         <StationList
                             :current-sort="sort"
                             :origin="searchOrigin"
@@ -236,7 +237,7 @@
                             </div>
                         </div>
                         <ul class="space-y-4 mb-8 flex-1">
-                            <li class="text-sm flex gap-2"><iconify-icon class="text-accent" icon="lucide:check"></iconify-icon> Ad-free Experience</li>
+                            <li class="text-sm flex gap-2"><iconify-icon class="text-accent" icon="lucide:check"></iconify-icon> Buy-or-Wait Score</li>
                             <li class="text-sm flex gap-2"><iconify-icon class="text-accent" icon="lucide:check"></iconify-icon> 14-day Trend Data</li>
                             <li class="text-sm flex gap-2"><iconify-icon class="text-accent" icon="lucide:check"></iconify-icon> 3 Daily Price Alerts</li>
                         </ul>
@@ -385,7 +386,7 @@ import api from '../axios.js'
 import PostSearchFilters from '../components/PostSearchFilters.vue'
 import PredictionCard from '../components/PredictionCard.vue'
 import StationList from '../components/StationList.vue'
-import { usePrediction } from '../composables/usePrediction.js'
+import UpsellBanner from '../components/UpsellBanner.vue'
 
 const LeafletMap = defineAsyncComponent(() => import('../components/LeafletMap.vue'))
 import LandingNav from '../components/landing/LandingNav.vue'
@@ -395,8 +396,6 @@ import HeroSearch from '../components/landing/HeroSearch.vue'
 import StatsRow from '../components/landing/StatsRow.vue'
 
 const { isAuthenticated, userTier } = useAuth()
-const { prediction, loading: predictionLoading, fetch: fetchPrediction } = usePrediction()
-const showFullPrediction = computed(() => Boolean(prediction.value) && !prediction.value.tier_locked)
 
 const liveStats = ref({ stationCount: null, latestPriceAt: null })
 
@@ -446,7 +445,8 @@ const PRICES = {
     annual: { basic: '£9.90', plus: '£24.90', pro: '£39.90' },
 }
 const PRICE_SUFFIX = { monthly: '/mo', annual: '/yr' }
-const { stations, meta, loading, error, search, reset } = useStations()
+const { stations, meta, prediction, loading, error, search, reset } = useStations()
+const showFullPrediction = computed(() => Boolean(prediction.value) && !prediction.value.tier_locked)
 
 watch(loading, (isLoading) => {
     if (!isLoading) return
@@ -557,9 +557,6 @@ async function runSearch(params) {
     radiusMiles.value = params.radius ?? radiusMiles.value
     searchAttempted.value = true
     await search(params)
-    const lat = meta.value?.lat ?? params.lat ?? null
-    const lng = meta.value?.lng ?? params.lng ?? null
-    fetchPrediction(lat && lng ? { lat, lng } : {})
 }
 
 async function onSearch(params) {