feat: Add IT Support catalog and related migrations, seeders, and email templates

- Created migration to add 'group_label' to 'product_type_fields' table.
- Implemented ItSupportCatalogSeeder to populate IT Support features and tiers.
- Added ProductCategorySeeder for initial product categories.
- Developed ProductMockupSeeder for mockup products in various categories.
- Introduced ProductTypeFieldSeeder to define fields for different product types.
- Created email templates for VPS service information and service renewal reminders.

app/Services/Customer/CustomerNoteService.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Services\Customer;
+
+use App\Models\Note;
+use App\Repositories\Customer\CustomerRepositoryInterface;
+use App\Services\Customer\Concerns\ResolvesCustomer;
+use Illuminate\Support\Collection;
+
+class CustomerNoteService
+{
+    use ResolvesCustomer;
+
+    public function __construct(
+        private readonly CustomerRepositoryInterface $customerRepository,
+    ) {}
+
+    /**
+     * Ghi chú của khách hàng (không gắn với dịch vụ cụ thể).
+     */
+    public function getCustomerNotes(string $uuid): Collection
+    {
+        $customer = $this->resolveCustomer($uuid);
+
+        return Note::with('user:id,username')
+            ->where('customer_id', $customer->id)
+            ->whereNull('service_id')
+            ->latest()
+            ->get();
+    }
+
+    public function storeCustomerNote(string $uuid, string $note, int $userId): Note
+    {
+        return $this->storeNote($uuid, ['note' => $note], $userId);
+    }
+
+    /**
+     * Ghi chú gắn với 1 dịch vụ cụ thể của khách hàng.
+     */
+    public function getServiceNotes(string $uuid, int $serviceId): Collection
+    {
+        $customer = $this->resolveCustomer($uuid);
+
+        return Note::with('user:id,username')
+            ->where('customer_id', $customer->id)
+            ->where('service_id', $serviceId)
+            ->latest()
+            ->get();
+    }
+
+    public function storeServiceNote(string $uuid, int $serviceId, string $note, int $userId): Note
+    {
+        return $this->storeNote($uuid, ['note' => $note, 'service_id' => $serviceId], $userId);
+    }
+
+    public function destroyNote(string $uuid, int $noteId): void
+    {
+        $customer = $this->resolveCustomer($uuid);
+
+        $deleted = Note::where('id', $noteId)->where('customer_id', $customer->id)->delete();
+        abort_if(!$deleted, 404, 'Không tìm thấy ghi chú');
+    }
+
+    private function storeNote(string $uuid, array $attributes, int $userId): Note
+    {
+        $customer = $this->resolveCustomer($uuid);
+
+        $note = Note::create([
+            ...$attributes,
+            'customer_id' => $customer->id,
+            'user_id' => $userId,
+        ]);
+
+        return $note->load('user:id,username');
+    }
+}