Initial commit: TopSysOps site + admin panel

Multi-page public site (Next.js), Node/Express backend with Postgres,
and Vite admin/account app, restructured from a single-page layout
into dedicated service, promotions, cases, about, FAQ, and blog pages
for SEO.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013otXCiTZsxdZ4SJKZ9wUky

backend/src/migrate.js

@@ -0,0 +1,37 @@
+const fs = require('fs');
+const path = require('path');
+const pool = require('./db');
+
+async function migrate() {
+  await pool.query(`
+    CREATE TABLE IF NOT EXISTS schema_migrations (
+      filename TEXT PRIMARY KEY,
+      applied_at TIMESTAMPTZ DEFAULT now()
+    )
+  `);
+
+  const dir = path.join(__dirname, '..', 'migrations');
+  const files = fs.readdirSync(dir).filter((f) => f.endsWith('.sql')).sort();
+
+  for (const file of files) {
+    const { rows } = await pool.query('SELECT 1 FROM schema_migrations WHERE filename = $1', [file]);
+    if (rows.length) continue;
+
+    const sql = fs.readFileSync(path.join(dir, file), 'utf8');
+    console.log(`[migrate] applying ${file}`);
+    const client = await pool.connect();
+    try {
+      await client.query('BEGIN');
+      await client.query(sql);
+      await client.query('INSERT INTO schema_migrations (filename) VALUES ($1)', [file]);
+      await client.query('COMMIT');
+    } catch (err) {
+      await client.query('ROLLBACK');
+      throw err;
+    } finally {
+      client.release();
+    }
+  }
+}
+
+module.exports = migrate;