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/Schemas/PlanForm.php

@@ -0,0 +1,91 @@
+<?php
+
+namespace App\Filament\Resources\Plans\Schemas;
+
+use Filament\Forms\Components\Select;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\Toggle;
+use Filament\Schemas\Components\Section;
+use Filament\Schemas\Schema;
+
+class PlanForm
+{
+    public static function configure(Schema $schema): Schema
+    {
+        return $schema
+            ->components([
+                Section::make('Fuel Types')
+                    ->schema([
+                        TextInput::make('features.fuel_types.max')
+                            ->label('Max fuel types')
+                            ->helperText('Leave blank for unlimited.')
+                            ->numeric()
+                            ->integer()
+                            ->minValue(1)
+                            ->nullable(),
+                    ]),
+
+                Section::make('Email')
+                    ->columns(2)
+                    ->schema([
+                        Toggle::make('features.email.enabled')
+                            ->label('Enabled'),
+                        Select::make('features.email.frequency')
+                            ->label('Frequency')
+                            ->options([
+                                'weekly_digest' => 'Weekly digest',
+                                'daily' => 'Daily',
+                                'triggered' => 'Triggered',
+                            ]),
+                    ]),
+
+                Section::make('Push')
+                    ->schema([
+                        Toggle::make('features.push.enabled')
+                            ->label('Enabled'),
+                    ]),
+
+                Section::make('WhatsApp')
+                    ->columns(3)
+                    ->schema([
+                        Toggle::make('features.whatsapp.enabled')
+                            ->label('Enabled'),
+                        TextInput::make('features.whatsapp.daily_limit')
+                            ->label('Daily limit')
+                            ->numeric()
+                            ->integer()
+                            ->minValue(0)
+                            ->required(),
+                        TextInput::make('features.whatsapp.scheduled_updates')
+                            ->label('Scheduled updates per day')
+                            ->numeric()
+                            ->integer()
+                            ->minValue(0)
+                            ->required(),
+                    ]),
+
+                Section::make('SMS')
+                    ->columns(2)
+                    ->schema([
+                        Toggle::make('features.sms.enabled')
+                            ->label('Enabled'),
+                        TextInput::make('features.sms.daily_limit')
+                            ->label('Daily limit')
+                            ->numeric()
+                            ->integer()
+                            ->minValue(0)
+                            ->required(),
+                    ]),
+
+                Section::make('Features')
+                    ->schema([
+                        Toggle::make('features.ai_predictions')
+                            ->label('AI predictions'),
+                        Toggle::make('features.price_threshold')
+                            ->label('Price threshold alerts'),
+                        Toggle::make('features.score_alerts')
+                            ->label('Score change alerts'),
+                    ]),
+            ]);
+    }
+}