Added migrations script

scripts/migrations.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+require __DIR__ . '/../vendor/autoload.php';
+
+use Medoo\Medoo;
+
+$dbFile = __DIR__ . '/../database/app.sqlite';
+if (!file_exists($dbFile)) {
+    if (!is_dir(dirname($dbFile))) {
+        mkdir(dirname($dbFile), 0755, true);
+    }
+    touch($dbFile);
+    chmod($dbFile, 0664);
+}
+
+$database = new Medoo([
+    'database_type' => 'sqlite',
+    'database_file' => $dbFile,
+]);
+
+// schéma minimal — CREATE TABLE IF NOT EXISTS est idempotent
+$database->query(
+    <<<'SQL'
+CREATE TABLE IF NOT EXISTS post (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL
+);
+SQL
+);
+
+echo "Migrations applied (minimal).\n";