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/print-distinct-agents.js

@@ -0,0 +1,14 @@
+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 distinctUuids = await db.collection('summaries').distinct('agent_uuid');
+  console.log('Distinct agent_uuid values in summaries:');
+  console.log(distinctUuids.map(u => typeof u === 'string' ? `"${u}"` : u));
+  
+  await mongoose.disconnect();
+}
+main();