ISSUE-345: EmbeddableInterface interface

Author: tatevikg1

Diff for: src/Domain/Model/Messaging/Message/EmbeddableInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpList\Core\Domain\Model\Messaging\Message;
+
+interface EmbeddableInterface
+{
+
+}

Diff for: src/Domain/Model/Messaging/Message/MessageContent.php

@@ -7,7 +7,7 @@
 use Doctrine\ORM\Mapping as ORM;
 
 #[ORM\Embeddable]
-class MessageContent
+class MessageContent implements EmbeddableInterface
 {
     #[ORM\Column(type: 'string', length: 255, nullable: false, options: ['default' => '(no subject)'])]
     private string $subject;

Diff for: src/Domain/Model/Messaging/Message/MessageFormat.php

@@ -8,7 +8,7 @@
 use InvalidArgumentException;
 
 #[ORM\Embeddable]
-class MessageFormat
+class MessageFormat implements EmbeddableInterface
 {
     #[ORM\Column(name: 'htmlformatted', type: 'boolean', options: ['default' => false])]
     private bool $htmlFormatted = false;

Diff for: src/Domain/Model/Messaging/Message/MessageMetadata.php

@@ -8,7 +8,7 @@
 use Doctrine\ORM\Mapping as ORM;
 
 #[ORM\Embeddable]
-class MessageMetadata
+class MessageMetadata implements EmbeddableInterface
 {
     #[ORM\Column(type: 'string', length: 255, nullable: true)]
     private ?string $status = null;

Diff for: src/Domain/Model/Messaging/Message/MessageOptions.php

@@ -8,7 +8,7 @@
 use DateTime;
 
 #[ORM\Embeddable]
-class MessageOptions
+class MessageOptions implements EmbeddableInterface
 {
     #[ORM\Column(name: 'fromfield', type: 'string', length: 255, nullable: false, options: ['default' => ''])]
     private string $fromField;

Diff for: src/Domain/Model/Messaging/Message/MessageSchedule.php

@@ -8,7 +8,7 @@
 use Doctrine\ORM\Mapping as ORM;
 
 #[ORM\Embeddable]
-class MessageSchedule
+class MessageSchedule implements EmbeddableInterface
 {
     #[ORM\Column(name: 'repeatinterval', type: 'integer', nullable: true, options: ['default' => 0])]
     private ?int $repeatInterval;