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-mongoose-instances.js

@@ -0,0 +1,6 @@
+const rootMongoose = require('mongoose');
+const proxyMongoose = require('../proxy/node_modules/mongoose');
+
+console.log('Root Mongoose === Proxy Mongoose:', rootMongoose === proxyMongoose);
+console.log('Root Mongoose version:', rootMongoose.version);
+console.log('Proxy Mongoose version:', proxyMongoose.version);