Add freemium plans, wallet-billed host notifications, and Pro upgrades.

Host alerts use email/phone on the host record without requiring a Ladill
account link; SMS and over-quota emails debit the org wallet at platform rates.

Co-authored-by: Cursor <cursoragent@cursor.com>

database/migrations/2026_06_28_020000_create_frontdesk_notification_usage_table.php

@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('frontdesk_notification_usage', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('organization_id')->constrained('frontdesk_organizations')->cascadeOnDelete();
+            $table->string('period', 7);
+            $table->unsignedInteger('email_count')->default(0);
+            $table->unsignedInteger('sms_count')->default(0);
+            $table->unsignedInteger('email_charged_minor')->default(0);
+            $table->unsignedInteger('sms_charged_minor')->default(0);
+            $table->timestamps();
+
+            $table->unique(['organization_id', 'period']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('frontdesk_notification_usage');
+    }
+};