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

scripts/extract-standalone-headers.js

@@ -0,0 +1,69 @@
+const SftpClient = require('ssh2-sftp-client');
+const { Client } = require('ssh2');
+
+const remoteExtractScript = `
+const fs = require('fs');
+const path = require('path');
+
+const root = '/home/adminbackend/web/demoplace.my.id/public_html/.next/standalone/.next/server';
+
+console.log('=== EXTRACTING ALL PAGE HEADERS FROM STANDALONE BUILD ===\\n');
+
+function scan(dir) {
+  if (!fs.existsSync(dir)) return;
+  const items = fs.readdirSync(dir, { withFileTypes: true });
+  for (const item of items) {
+    const full = path.join(dir, item.name);
+    if (item.isDirectory()) {
+      scan(full);
+    } else if (item.name.endsWith('.js') || item.name.endsWith('.html')) {
+      const content = fs.readFileSync(full, 'utf8');
+      
+      // Look for H2/H1 page header titles or page metadata
+      const matches = content.matchAll(/<h[12][^>]*>([\\s\\S]*?)<\\/h[12]>/gi);
+      for (const m of matches) {
+        const clean = m[1].replace(/<[^>]+>/g, '').trim();
+        if (clean && clean.length > 2 && clean.length < 60 && !clean.includes('{') && !clean.includes('function')) {
+          console.log(\`File: \${path.relative(root, full)}\`);
+          console.log(\`   Header: "\${clean}"\`);
+        }
+      }
+    }
+  }
+}
+
+scan(path.join(root, 'app/(dashboard)'));
+`;
+
+async function main() {
+  const sftp = new SftpClient();
+  await sftp.connect({
+    host: '103.185.47.52',
+    port: 2222,
+    username: 'adminbackend',
+    password: 'htEo7x6LsBQiEHHH'
+  });
+
+  const remoteScriptPath = '/home/adminbackend/extract_standalone.js';
+  await sftp.put(Buffer.from(remoteExtractScript), remoteScriptPath);
+  await sftp.end();
+
+  const conn = new Client();
+  conn.on('ready', () => {
+    conn.exec(`node ${remoteScriptPath}`, (err, stream) => {
+      let out = '';
+      stream.on('data', d => out += d);
+      stream.on('close', () => {
+        console.log(out);
+        conn.end();
+      });
+    });
+  }).connect({
+    host: '103.185.47.52',
+    port: 2222,
+    username: 'adminbackend',
+    password: 'htEo7x6LsBQiEHHH'
+  });
+}
+
+main();