feat: Add stale process monitor, users route, landing page, archive old scripts

- Add backend stale process monitoring API (/api/stale-processes)
- Add users management route
- Add frontend landing page and stale process monitor UI on /scraper-tools
- Move old development scripts to backend/archive/
- Update frontend build with new features

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/archive/check-db.ts

@@ -0,0 +1,27 @@
+import { Pool } from 'pg';
+
+const pool = new Pool({
+  connectionString: 'postgresql://sail:password@localhost:5432/dutchie_menus'
+});
+
+async function checkDB() {
+  try {
+    const result = await pool.query(`
+      SELECT COUNT(*) as total,
+             COUNT(*) FILTER (WHERE active = true) as active
+      FROM proxies
+    `);
+
+    console.log('Proxies:', result.rows[0]);
+
+    const stores = await pool.query('SELECT slug FROM stores LIMIT 5');
+    console.log('Sample stores:', stores.rows.map(r => r.slug));
+
+  } catch (error: any) {
+    console.error('Error:', error.message);
+  } finally {
+    await pool.end();
+  }
+}
+
+checkDB();