feat: роли customer/admin, админ-панель, admin@site.com

Co-authored-by: Cursor <cursoragent@cursor.com>

src/seed-admin.js

@@ -0,0 +1,29 @@
+const bcrypt = require('bcryptjs');
+const { query } = require('./db');
+const { ROLES } = require('./constants/roles');
+
+async function seedAdmin() {
+  const email = (process.env.ADMIN_EMAIL || 'admin@site.com').trim().toLowerCase();
+  const password = process.env.ADMIN_PASSWORD || 'admin';
+  const name = process.env.ADMIN_NAME || 'Администратор';
+
+  const { rows } = await query('SELECT id, role FROM users WHERE email = $1', [email]);
+
+  if (!rows[0]) {
+    const hash = bcrypt.hashSync(password, 10);
+    await query(
+      `INSERT INTO users (email, password_hash, name, role)
+       VALUES ($1, $2, $3, $4)`,
+      [email, hash, name, ROLES.ADMIN]
+    );
+    console.log('Создан администратор:', email);
+    return;
+  }
+
+  if (rows[0].role !== ROLES.ADMIN) {
+    await query('UPDATE users SET role = $1 WHERE id = $2', [ROLES.ADMIN, rows[0].id]);
+    console.log('Пользователю назначена роль admin:', email);
+  }
+}
+
+module.exports = { seedAdmin };