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

test/test-filter.js

@@ -0,0 +1,20 @@
+const mongoose = require('mongoose');
+
+async function main() {
+  const LOCAL_URI = 'mongodb://127.0.0.1:27017/backone_dpi';
+  await mongoose.connect(LOCAL_URI);
+  const db = mongoose.connection.db;
+  
+  const filter = { agent_uuid: { $ne: null } };
+  
+  const results = await db.collection('summaries')
+    .aggregate([
+      { $match: filter },
+      { $sort: { timestamp: -1 } },
+      { $group: { _id: '$agent_uuid', lastSeen: { $first: '$timestamp' }, label: { $first: '$agent_label' } } },
+    ]).toArray();
+    
+  console.log('Aggregated agents without site filter:', results);
+  await mongoose.disconnect();
+}
+main();