Add sector classification module, integrate into all 7 scrapers, fix CF pagination

etendersni-simple.mjs

@@ -0,0 +1,36 @@
+import axios from 'axios';
+
+const client = axios.create({
+  timeout: 5000,
+  maxRedirects: 5,
+  headers: {
+    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
+  }
+});
+
+(async () => {
+  try {
+    // Try the home page with a search query parameter
+    const url = 'https://etendersni.gov.uk/epps/home.do?status=open';
+    console.log('Fetching:', url);
+    const resp = await client.get(url);
+    console.log('Status:', resp.status);
+    console.log('URL:', resp.config.url);
+    
+    // Check if it has entry IDs
+    if (resp.data.includes('entryId')) {
+      console.log('✓ Found entryId in response');
+      const matches = resp.data.match(/entryId=(\d+)/g);
+      if (matches) {
+        console.log(`Found ${matches.length} tenders:`);
+        matches.slice(0, 5).forEach(m => console.log('  ', m));
+      }
+    } else {
+      console.log('No entryId found');
+      console.log('Sample:', resp.data.substring(1000, 2000));
+    }
+    
+  } catch (e) {
+    console.log('Error:', e.message);
+  }
+})();