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-brands-table.ts

@@ -0,0 +1,17 @@
+import { pool } from './src/db/migrate';
+
+async function checkTable() {
+  const result = await pool.query(`
+    SELECT column_name, data_type, is_nullable 
+    FROM information_schema.columns 
+    WHERE table_name = 'brands' 
+    ORDER BY ordinal_position
+  `);
+  
+  console.log('Brands table structure:');
+  console.table(result.rows);
+  
+  await pool.end();
+}
+
+checkTable();