Add subscription tiers, notification preferences, and logging infrastructure

- Add database migrations for plans, subscriptions, notification preferences, and notification log tables
- Implement DispatchUserNotificationJob to handle channel resolution, daily limits, and logging (sent/tier_restricted/daily_limit)
- Add SendScheduledWhatsAppJob for scheduled notification delivery
- Create PlanFeatures service to resolve tier capabilities, check daily limits, and validate fuel

app/Filament/Resources/Plans/PlanResource.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Filament\Resources\Plans;
+
+use App\Filament\NavigationGroup;
+use App\Filament\Resources\Plans\Pages\EditPlan;
+use App\Filament\Resources\Plans\Pages\ListPlans;
+use App\Filament\Resources\Plans\Schemas\PlanForm;
+use App\Filament\Resources\Plans\Tables\PlansTable;
+use App\Models\Plan;
+use Filament\Resources\Resource;
+use Filament\Schemas\Schema;
+use Filament\Tables\Table;
+
+class PlanResource extends Resource
+{
+    protected static ?string $model = Plan::class;
+
+    protected static string|\UnitEnum|null $navigationGroup = NavigationGroup::System;
+
+    protected static ?int $navigationSort = 10;
+
+    public static function form(Schema $schema): Schema
+    {
+        return PlanForm::configure($schema);
+    }
+
+    public static function table(Table $table): Table
+    {
+        return PlansTable::configure($table);
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => ListPlans::route('/'),
+            'edit' => EditPlan::route('/{record}/edit'),
+        ];
+    }
+}