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/find-long-files.js

@@ -0,0 +1,39 @@
+const fs = require('fs');
+const path = require('path');
+
+const excludeDirs = ['node_modules', '.next', 'scratch', 'test', '.git', 'dist'];
+
+function getFiles(dir, fileList = []) {
+  const files = fs.readdirSync(dir);
+  for (const file of files) {
+    const filePath = path.join(dir, file);
+    const stat = fs.statSync(filePath);
+    if (stat.isDirectory()) {
+      if (!excludeDirs.includes(file)) {
+        getFiles(filePath, fileList);
+      }
+    } else {
+      if (['.ts', '.tsx', '.js', '.jsx'].includes(path.extname(file))) {
+        fileList.push(filePath);
+      }
+    }
+  }
+  return fileList;
+}
+
+const allFiles = getFiles('C:\\Users\\demo\\Downloads\\Deep Package Inspection');
+
+console.log('--- Checking file sizes (Rule 3: 256-LOC limit) ---');
+const longFiles = [];
+allFiles.forEach(file => {
+  const content = fs.readFileSync(file, 'utf8');
+  const lines = content.split('\n').length;
+  if (lines > 256) {
+    longFiles.push({ file, lines });
+  }
+});
+
+console.log(`Found ${longFiles.length} files exceeding 256 lines:`);
+longFiles.forEach(f => {
+  console.log(`- ${path.relative('C:\\Users\\demo\\Downloads\\Deep Package Inspection', f.file)}: ${f.lines} lines`);
+});