diff --git a/CODEX_HANDOFF.md b/CODEX_HANDOFF.md
index 72d9c84..57e1438 100644
--- a/CODEX_HANDOFF.md
+++ b/CODEX_HANDOFF.md
@@ -1,9 +1,69 @@
 # Codex Handoff - QRIS Soundbox Platform
 
-Tanggal update: 2026-06-06, Asia/Jakarta.
+Tanggal update: 2026-06-07, Asia/Jakarta.
 
 Dokumen ini adalah snapshot kerja terakhir untuk melanjutkan project tanpa perlu membaca ulang seluruh chat.
 
+## Update Terbaru - 2026-06-07
+
+- Production saat ini fokus ke portal Soundbox Ops di `sms.bizone.id`, dengan MQTT broker `broker.bizone.id`.
+- Commit terakhir yang sudah dipush sebelum update handoff ini:
+  - `1e0f36f Split MQTT trace and commands pages`
+  - `ef23b09 Parse QF100 heartbeat time as WIB`
+  - `e3d7e60 Complete QF100 ops commands and detail UI`
+- Perubahan UI/ops terbaru:
+  - menu `MQTT Trace` sekarang halaman sendiri: `/ui/mqtt-trace`;
+  - menu `Config & Commands` sekarang halaman sendiri: `/ui/config-commands`;
+  - sidebar tidak lagi lompat ke anchor dashboard untuk dua menu tersebut;
+  - dashboard tetap ada summary ringkas, tetapi menu operasional utama pindah ke screen masing-masing.
+- Halaman `/ui/mqtt-trace`:
+  - menampilkan trail uplink/downlink ala audit trail;
+  - filter direction `uplink/downlink`;
+  - filter message type;
+  - search topic/device/type/payload;
+  - limit 100/250/500;
+  - auto refresh 10 detik;
+  - klik event untuk lihat full payload JSON.
+- Endpoint `/admin/mqtt/status` sekarang mendukung:
+  - `limit` sampai 500;
+  - `direction`;
+  - `message_type`;
+  - `device_id`.
+- Halaman `/ui/config-commands`:
+  - menampilkan status database, pending/failed notification, export worker;
+  - menampilkan MQTT publisher/subscriber runtime;
+  - dropdown device dengan SN, model, connection, last seen;
+  - tombol `Reboot Device`;
+  - tombol `Open Device Detail`.
+- Fix dashboard terbaru:
+  - kolom `Last Seen` di `/ui/soundbox-ops` tidak lagi menampilkan `[object Object]`;
+  - formatter sekarang membaca `latest_heartbeat.received_at`, `latest_heartbeat.timestamp`, lalu fallback `last_seen_at`.
+- QF100 firmware categories yang sudah disiapkan:
+  - category `1`: payment sound, payload `data.pay-amount`;
+  - category `3`: heartbeat dari device;
+  - category `4`: dynamic QR display, payload `data.qr-url`, `data.amount`, `data.expire-seconds`;
+  - category `5`: reboot command, payload `data.command = "reboot"`.
+- Dynamic QR:
+  - modal preview di Device Technical Detail sudah generate QR dari `data["qr-url"]`;
+  - tombol `Send Test QR` mengirim command `dynamic_qr.display`;
+  - backend menerima payload nested `header/data` dan publish category `4` ke `soundbox/{serial_number}/down`.
+- Reboot:
+  - command `device.reboot` publish category `5` ke `soundbox/{serial_number}/down`;
+  - bisa dikirim dari Device Technical Detail, Device Registry drawer, dan `/ui/config-commands`.
+- Heartbeat:
+  - QF100 mengirim `data.time` sebagai WIB/UTC+7;
+  - backend sekarang parse waktu itu sebagai WIB lalu simpan UTC;
+  - contoh `20260607023400` disimpan menjadi `2026-06-06T19:34:00.000Z`.
+- Device Registry dan Device Detail:
+  - SN ditampilkan di tabel Device Registry;
+  - SN ditampilkan di drawer Device Detail;
+  - SN ditampilkan di header Device Technical Detail.
+- Verifikasi lokal terakhir:
+  - `npm run typecheck`: pass;
+  - `node scripts/ui-qa-check.mjs`: pass;
+  - `node --check scripts/smoke-qf100-adapter.mjs`: pass pada patch QF100 sebelumnya;
+  - `git diff --check`: pass.
+
 ## Update Terbaru - 2026-06-06
 
 - Fokus produk sekarang: `sms.bizone.id` menjadi portal utama Soundbox Ops / Monitoring, bukan katalog UI atau dashboard admin campuran.
diff --git a/ui/soundbox-ops/index.html b/ui/soundbox-ops/index.html
index 33ddad7..582a8c4 100644
--- a/ui/soundbox-ops/index.html
+++ b/ui/soundbox-ops/index.html
@@ -233,6 +233,9 @@
 
         function lastSeen(value) {
           if (!value) return "No heartbeat";
+          if (typeof value === "object") {
+            return lastSeen(value.received_at || value.timestamp || value.created_at || value.updated_at);
+          }
           const date = new Date(value);
           if (Number.isNaN(date.getTime())) return value;
           const minutes = Math.floor((Date.now() - date.getTime()) / 60000);
@@ -242,6 +245,13 @@
           return `${Math.floor(minutes / 1440)}d ago`;
         }
 
+        function deviceLastSeen(device) {
+          return device?.latest_heartbeat?.received_at ||
+            device?.latest_heartbeat?.timestamp ||
+            device?.last_seen_at ||
+            null;
+        }
+
         function statusMeta(value) {
           const status = normalize(value);
           if (status === "online") return { label: "Online", badge: "bg-emerald-50 text-emerald-700 border-emerald-200", dot: "bg-emerald-500" };
@@ -342,7 +352,7 @@
                   </div>
                   <div class="mt-1 text-xs text-slate-500">Health ${healthLabel(device)}</div>
                 </td>
-                <td class="px-5 py-4 text-right text-slate-600">${lastSeen(device.latest_heartbeat)}</td>
+                <td class="px-5 py-4 text-right text-slate-600">${lastSeen(deviceLastSeen(device))}</td>
                 <td class="px-5 py-4 text-right">
                   <a class="inline-flex items-center gap-1 rounded-lg border border-slate-200 px-3 py-1.5 text-xs font-bold text-slate-700 hover:bg-slate-50" href="${detailUrl}">
                     Detail <span class="material-symbols-outlined text-[16px]">open_in_new</span>