feat(source2): push all latest files - device labeling, help system, proxy docs, database isolation fix

- Added DOKUMENTASI-FILTER-PER-SITE.md (site isolation docs)
- Fixed start-with-env.js to force-load .env.production
- Fixed MONGODB_URI hostname from mongodb-netify to mongodb.prod.proit.id
- Updated .gitignore to exclude sensitive scripts and credential files
- Minor UI and labeling improvements

backend/check_events.js

@@ -0,0 +1,22 @@
+const mongoose = require('mongoose');
+require('dotenv').config({path: '../.env.local'});
+mongoose.connect(process.env.MONGODB_URI).then(async () => {
+  const db = mongoose.connection;
+  const highEvents = await db.collection('events').find({
+    $or: [
+      {severity: {$in: ['Critical', 'High']}}, 
+      {category_label: 'Cybersecurity'}
+    ]
+  }).toArray();
+  
+  if (highEvents.length > 0) {
+     console.log("High Events timestamps:");
+     highEvents.forEach(e => {
+        console.log("- event_at:", e.event_at, " | timestamp:", e.timestamp);
+     });
+  } else {
+     console.log("No high events found in array");
+  }
+
+  process.exit(0);
+}).catch(e => console.error(e));