Add dedicated /pricing page and lock launch tiers to Free/Daily/Smart

Consolidate pricing onto a single source. Pro is deferred from launch
(left dormant: no Stripe price, no card), so the offered set is 3 tiers.

- Extract the pricing grid and footer into shared components
  (PricingGrid.vue, landing/SiteFooter.vue); add a /pricing route
  rendering Pricing.vue; remove the pricing section from Home
- Repoint every upgrade link to the /pricing route (LandingNav and
  SiteFooter via RouterLink, UpsellBanner CTA) — no more #pricing anchors
- Bump Smart (plus) SMS daily limit 1 -> 3 (PlanSeeder + PlanFactory),
  update PlanFeaturesTest assertion
- Rewrite /pricing card bullets to match real entitlements (drop
  unbuilt promises: multi-location tracking, 14-day trend, supermarket anchor)
- Fix stale "1/day" SMS references in notifications.md, tiers.md, docs/tiers.md
- Delete unused resources/views/components/pricing-card.blade.php

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/Feature/Tiers/PlanFeaturesTest.php

@@ -53,7 +53,7 @@ it('canSendNow returns false when tier does not allow the channel', function ():
 });
 
 it('canSendNow returns false when daily limit is reached', function (): void {
-    $plan = Plan::where('name', 'plus')->first(); // sms_daily_limit = 1
+    $plan = Plan::where('name', 'plus')->first(); // sms_daily_limit = 3
     $user = User::factory()->create();
 
     UserNotificationPreference::factory()->create([
@@ -70,7 +70,7 @@ it('canSendNow returns false when daily limit is reached', function (): void {
         'created_at' => now(),
     ]);
 
-    expect($plan->sms_daily_limit)->toBe(1);
+    expect($plan->sms_daily_limit)->toBe(3);
 
     $sentCount = NotificationLog::where('user_id', $user->id)
         ->where('channel', 'sms')