Add bytetrack-recounting-upload-dashboard.service for port 5003

AGENTS.md

@@ -43,7 +43,7 @@ PYTHONNOUSERSITE=1 venv/bin/python recounting_dashboard_upload.py
 - **`numpy<2`** is required for `rknn-toolkit-lite2` compatibility.
 - **Install path in service files is `/opt/bytetrack-counter`** (not the `/opt/jetson-counter` mentioned in README/DEPLOY). The `.env.example` also reflects `/opt/bytetrack-counter`.
 - Service user is **`root`**, not `jetson` (despite README saying otherwise).
-- Two systemd units: `bytetrack-counter.service` + `bytetrack-counter-dashboard.service`.
+- Three systemd units: `bytetrack-counter.service`, `bytetrack-counter-dashboard.service`, and `bytetrack-recounting-upload-dashboard.service` (upload recounting dashboard, port 5003).
 - `counter_live.py` (TensorRT) is Jetson-only and won't work on RK3588.
 - **Reset flow**: `POST /api/reset` → deletes state JSON + touches `{SHM_DIR}/.reset`. `batch_store._check_reset_signal()` watches this marker and clears in-memory state on next crossing.
 - **Upload filename contract**: uploads are expected as `batch_XX_YYYYMMDD_HHmmSS.mp4` (XX = batch number, timestamp = date). `recounting_dashboard_upload.py` parses both to query the live API's `/api/day-detail/<YYYY-MM-DD>` for the recorded count.