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

start-with-env.js

@@ -0,0 +1,31 @@
+// start-with-env.js
+// ─────────────────────────────────────────────────────────────────────────────
+// PM2 entry point untuk Next.js production server (Source 2)
+// Memuat .env.production sebelum memulai Next.js standalone server
+// ─────────────────────────────────────────────────────────────────────────────
+
+const path = require('path');
+const fs   = require('fs');
+
+// Load .env.production variables into process.env
+const envFile = path.join(__dirname, '.env.production');
+if (fs.existsSync(envFile)) {
+  const lines = fs.readFileSync(envFile, 'utf8').split('\n');
+  for (const line of lines) {
+    const trimmed = line.trim();
+    if (!trimmed || trimmed.startsWith('#')) continue;
+    const eqIdx = trimmed.indexOf('=');
+    if (eqIdx < 1) continue;
+    const key = trimmed.substring(0, eqIdx).trim();
+    const val = trimmed.substring(eqIdx + 1).trim();
+    if (key) {
+      process.env[key] = val; // Always overwrite — .env.production is the source of truth
+    }
+  }
+  console.log('[start-with-env] ✓ Loaded .env.production');
+} else {
+  console.warn('[start-with-env] ⚠ .env.production not found, using existing env');
+}
+
+// Start Next.js standalone server
+require('./.next/standalone/server.js');