feat(notification) : add Notification entity, repository, and migration

migrations/Version20260315184538.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20260315184538 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('CREATE TABLE notification (id INT GENERATED BY DEFAULT AS IDENTITY NOT NULL, type VARCHAR(50) NOT NULL, title VARCHAR(255) NOT NULL, message TEXT NOT NULL, is_read BOOLEAN NOT NULL, created_at TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL, user_id INT NOT NULL, related_ticket_id INT DEFAULT NULL, PRIMARY KEY (id))');
+        $this->addSql('CREATE INDEX IDX_BF5476CAD8C11BC9 ON notification (related_ticket_id)');
+        $this->addSql('CREATE INDEX idx_notification_user ON notification (user_id)');
+        $this->addSql('CREATE INDEX idx_notification_user_read ON notification (user_id, is_read)');
+        $this->addSql('ALTER TABLE notification ADD CONSTRAINT FK_BF5476CAA76ED395 FOREIGN KEY (user_id) REFERENCES "user" (id) ON DELETE CASCADE NOT DEFERRABLE');
+        $this->addSql('ALTER TABLE notification ADD CONSTRAINT FK_BF5476CAD8C11BC9 FOREIGN KEY (related_ticket_id) REFERENCES client_ticket (id) ON DELETE SET NULL NOT DEFERRABLE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE notification DROP CONSTRAINT FK_BF5476CAA76ED395');
+        $this->addSql('ALTER TABLE notification DROP CONSTRAINT FK_BF5476CAD8C11BC9');
+        $this->addSql('DROP TABLE notification');
+    }
+}