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/download-env-prod.js

@@ -0,0 +1,30 @@
+module.paths.unshift('c:\\Users\\demo\\Downloads\\Deep Package Inspection\\node_modules');
+const { Client } = require('ssh2');
+const fs = require('fs');
+
+const SSH = { host: '103.185.47.52', port: 2222, username: 'adminbackend', password: 'htEo7x6LsBQiEHHH', readyTimeout: 60000 };
+const REMOTE_PATH = '/home/adminbackend/web/demoplace.my.id/public_html/.env.production';
+const LOCAL_PATH = 'c:\\Users\\demo\\Downloads\\Deep Package Inspection\\.env.production';
+
+async function main() {
+  const conn = new Client();
+  await new Promise((resolve, reject) => {
+    conn.on('ready', resolve).on('error', reject).connect(SSH);
+  });
+  console.log('SSH connected. Downloading .env.production...');
+
+  await new Promise((resolve, reject) => {
+    conn.sftp((err, sftp) => {
+      if (err) return reject(err);
+      sftp.fastGet(REMOTE_PATH, LOCAL_PATH, {}, (err2) => {
+        if (err2) return reject(err2);
+        resolve();
+      });
+    });
+  });
+
+  console.log('Downloaded successfully to:', LOCAL_PATH);
+  conn.end();
+}
+
+main().catch(console.error);