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-products.ts

@@ -0,0 +1,29 @@
+import { Pool } from 'pg';
+
+const pool = new Pool({
+  connectionString: 'postgresql://sail:password@localhost:5432/dutchie_menus'
+});
+
+async function checkProducts() {
+  try {
+    console.log('Products table columns:');
+    const productsColumns = await pool.query(`
+      SELECT column_name, data_type
+      FROM information_schema.columns
+      WHERE table_name = 'products'
+      ORDER BY ordinal_position
+    `);
+    productsColumns.rows.forEach(r => console.log(`  - ${r.column_name}: ${r.data_type}`));
+
+    console.log('\nSample products:');
+    const products = await pool.query('SELECT * FROM products LIMIT 3');
+    console.log(JSON.stringify(products.rows, null, 2));
+
+  } catch (error: any) {
+    console.error('Error:', error.message);
+  } finally {
+    await pool.end();
+  }
+}
+
+checkProducts();