feat(tiers): add display-name layer, push.frequency entitlement, and rename pricing cards

Reconciles tier docs with `PlanSeeder` reality (basic has price_threshold
and score_alerts; schema is stripe_price_id_monthly + stripe_price_id_annual)
and introduces the display-name layer from pricing-plan.md v2.

- PlanTier::label() + Plan::displayName() + PlanFeatures::displayName()
  expose user-facing names (Free/Daily/Smart/Pro); backend identifiers stay
  basic/plus/pro so every call site, Stripe mapping, and test keeps working.
- push.frequency key added to features JSON (none/daily/triggered), mirroring
  email.frequency so Daily's daily push is distinguishable from Smart/Pro's
  triggered push. Seeder, factory, free-tier stubs, and Filament form updated.
- Homepage pricing cards renamed: Basic→Daily, Plus→Smart; badge
  "Most Popular"→"Most pick this"; CTAs refreshed.
- docs/tiers.md change log records the full diff.

Fleet tier, 14-day trial copy, and Smart dark-card treatment deferred.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/Services/PlanFeatures.php

@@ -23,7 +23,7 @@ final class PlanFeatures
                 'features' => [
                     'fuel_types' => ['max' => 1],
                     'email' => ['enabled' => true, 'frequency' => 'weekly_digest'],
-                    'push' => ['enabled' => false],
+                    'push' => ['enabled' => false, 'frequency' => 'none'],
                     'whatsapp' => ['enabled' => false, 'daily_limit' => 0, 'scheduled_updates' => 0],
                     'sms' => ['enabled' => false, 'daily_limit' => 0],
                     'ai_predictions' => false,
@@ -195,4 +195,10 @@ final class PlanFeatures
     {
         return $this->plan->name ?? 'free';
     }
+
+    /** User-facing display label for the resolved tier (e.g. basic → "Daily"). */
+    public function displayName(): string
+    {
+        return $this->plan->displayName();
+    }
 }