Add cutting workbook normalizer

README.md

@@ -52,6 +52,21 @@ The scheduled endpoint is API-key protected and returns a summary:
 }
 ```
 
+### Cutting Workbook Import
+
+Manual cutting/replenishment workbooks can be normalized into JSON before they
+are persisted or shown in the app:
+
+```bash
+python3 backend/scripts/normalize_cut_workbook.py "/path/to/NECESSIDADE DE CORTE.xlsx" --pretty -o /tmp/necessidade_corte_normalized.json
+```
+
+The output includes purchase need rows, production orders, finished stock,
+stock plus OP availability, real purchase need, outside items, and cut-plan
+sections by family (`BLCS`, `BLMC`, `BLOS`, `BLPM`). The importer reads cached
+workbook values and reports broken formula references instead of making the app
+depend on Excel formulas at runtime.
+
 ## Local Development
 
 Start PostgreSQL: