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/fetch-remote-dashboard.js

@@ -0,0 +1,26 @@
+const axios = require('axios');
+
+async function main() {
+  console.log('Logging in to remote server...');
+  const loginRes = await axios.post('https://demoplace.my.id/api/auth/login', {
+    username: 'nexus',
+    password: 'nexus'
+  });
+  
+  const cookie = loginRes.headers['set-cookie'];
+  console.log('Login successful. Cookies:', cookie);
+  
+  console.log('Fetching / (Overview page) with cookie...');
+  const pageRes = await axios.get('https://demoplace.my.id/', {
+    headers: {
+      Cookie: cookie ? cookie.join('; ') : ''
+    }
+  });
+  
+  console.log('Page HTTP Status:', pageRes.status);
+  console.log('Page HTML length:', pageRes.data.length);
+  console.log('HTML snippet (first 500 chars):');
+  console.log(pageRes.data.substring(0, 500));
+}
+
+main().catch(console.error);