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-data-size-format.js

@@ -0,0 +1,35 @@
+// test/test-data-size-format.js
+const assert = require('assert');
+
+function formatDataSize(sizeMB) {
+  let displaySize = "";
+  if (sizeMB >= 1024 * 1024) {
+    displaySize = `${(sizeMB / (1024 * 1024)).toFixed(2)} TB`;
+  } else if (sizeMB >= 1024) {
+    displaySize = `${(sizeMB / 1024).toFixed(2)} GB`;
+  } else {
+    displaySize = `${sizeMB.toFixed(2)} MB`;
+  }
+  return displaySize;
+}
+
+try {
+  // Test case 1: Less than 1024 MB
+  assert.strictEqual(formatDataSize(0.38), "0.38 MB");
+  assert.strictEqual(formatDataSize(95.68), "95.68 MB");
+  assert.strictEqual(formatDataSize(999.99), "999.99 MB");
+
+  // Test case 2: Over 1024 MB (GB)
+  assert.strictEqual(formatDataSize(1024), "1.00 GB");
+  assert.strictEqual(formatDataSize(1536), "1.50 GB");
+  assert.strictEqual(formatDataSize(7654.67), "7.48 GB");
+
+  // Test case 3: Over 1024 * 1024 MB (TB)
+  assert.strictEqual(formatDataSize(1048576), "1.00 TB");
+  assert.strictEqual(formatDataSize(1572864), "1.50 TB");
+
+  console.log("✓ All Data Size formatting unit tests passed successfully!");
+} catch (err) {
+  console.error("✗ Unit tests failed:", err.message);
+  process.exit(1);
+}