Add MySQL schema dump for phpMyAdmin

database/migrations/2024_01_01_000008_create_attachments_table.php

@@ -0,0 +1,18 @@
+<?php
+
+use PDO;
+
+return function (PDO $pdo): void {
+    $pdo->exec(<<<SQL
+        CREATE TABLE attachments (
+            id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+            comment_id INT UNSIGNED NOT NULL,
+            filename VARCHAR(255) NOT NULL,
+            path VARCHAR(255) NOT NULL,
+            size INT UNSIGNED NOT NULL,
+            mime VARCHAR(255) NOT NULL,
+            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+            CONSTRAINT fk_attachments_comment FOREIGN KEY (comment_id) REFERENCES comments(id) ON DELETE CASCADE
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+    SQL);
+};