feat: RapidOCR default OCR engine, office-only ocr_engine, drop operator toggle

docs/deployment.md

@@ -44,27 +44,37 @@ loads `.engine` only — see `models/modelREADME.md` for which weights each mode
   `batch_history_folder/batch_<ts>.json` + `hasil_perhitungan.json` (per-batch reports).
 - Live frame: `/dev/shm/jetson-counter/live_frame.jpg` (written every 2nd frame,
   consumed by `/api/live-video` MJPEG).
-- Helpers: `scripts/check_jetson_db.py`; retired ops scripts in `archive/`
+- Helpers: `check_jetson_db.py` (root); retired ops scripts in `archive/`
   (`backup.py`, `dump_db.py`, `migrate_jetson_db.py`, `merge_batches_*.py`,
   `update_batches.py`, `diagnose_truck_jetson.py`).
 
-## DO OCR packages (optional Paddle)
-Primary path is system Tesseract (CPU):
+## DO OCR packages
+Default engine is **RapidOCR** (PP-OCR via onnxruntime, bundled models —
+offline-friendly; installed with `requirements.txt`):
 
 ```bash
+pip install rapidocr_onnxruntime
+```
+
+Backups (`ocr_engine` — office monitoring UI toggle, no restart):
+`Tesseract (Backup, Light)`:
+
+```bash
+# lighter; system package + Indonesian traineddata
 sudo apt install tesseract-ocr tesseract-ocr-ind
 pip install pytesseract
 ```
 
-Backup engine (`ocr_engine: paddle` via office/operator UI toggle — no restart):
+`PaddleOCR (Accuracy, Heavy to run)`:
 
 ```bash
 # optional; heavier — see paddleocr docs for Jetson wheels
 pip install paddleocr
 ```
 
-Missing paddle deps → upload returns explicit error; flip engine back to
-`tesseract` from either dashboard. Operator page: `http://<jetson>:5000/operator`
+Missing deps → upload returns explicit error (never silent fallback); flip
+engine back to `RapidOCR`/`Tesseract` from the office dashboard
+(`:5721`). Operator page: `http://<jetson>:5000/operator`
 (smartphone camera capture for DO photos). Photo dir under `output.dir` with
 7-day retention (hourly purge in dashboard process).
 
@@ -79,6 +89,5 @@ Pages: `/` + `/monitoring`, `/operator` (manual start/stop; DO panel in
 `/api/day-detail/<date>`, `/api/recent-batches`, `/api/available-dates`,
 `/api/export-daily-csv`, `/api/export-day-csv/<date>` (Excel via openpyxl).
 
-Port split: mode / model_mode / require_plate / require_do POSTs → **office
-5721 only** (403 on 5000). `ocr_engine` POST allowed on both ports (synced via
-settings GET). Smartphones open `http://<host>:5000/operator` for camera capture.
+Port split: mode / model_mode / require_plate / require_do / ocr_engine POSTs →
+**office 5721 only** (403 on 5000). Smartphones open `http://<host>:5000/operator` for camera capture.