Aggiunge script di conversione voltammetrie CHI660C in CSV europeo

Rimuove metadati/risultati dai .txt e produce CSV a due colonne
(Potential/V, Current/A) con separatore ';' e decimale ','.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

cv_to_csv.py

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+"""Converte i file .txt di output CHI660C (voltammetria ciclica) in CSV europeo.
+
+Rimuove i metadati iniziali e la sezione "Results" e mantiene solo le due
+colonne dati (Potential/V, Current/A), scritte con separatore ';' e
+virgola come separatore decimale.
+"""
+
+import csv
+import sys
+from pathlib import Path
+
+DATA_HEADER = "Potential/V, Current/A"
+
+
+def convert_file(input_path: Path, output_path: Path) -> None:
+    with input_path.open("r", encoding="utf-8", errors="replace") as f:
+        lines = f.readlines()
+
+    try:
+        header_idx = next(i for i, line in enumerate(lines) if line.strip() == DATA_HEADER)
+    except StopIteration:
+        raise ValueError(f"Intestazione dati '{DATA_HEADER}' non trovata in {input_path}")
+
+    rows = []
+    for line in lines[header_idx + 1:]:
+        line = line.strip()
+        if not line:
+            continue
+        potential, current = (v.strip() for v in line.split(",", 1))
+        rows.append((potential.replace(".", ","), current.replace(".", ",")))
+
+    with output_path.open("w", encoding="utf-8", newline="") as f:
+        writer = csv.writer(f, delimiter=";")
+        writer.writerow(["Potential/V", "Current/A"])
+        writer.writerows(rows)
+
+
+def main(argv: list[str]) -> None:
+    folder = Path(argv[1]) if len(argv) > 1 else Path(__file__).parent
+    txt_files = sorted(folder.glob("*.txt"))
+
+    if not txt_files:
+        print(f"Nessun file .txt trovato in {folder}")
+        return
+
+    for txt_file in txt_files:
+        csv_file = txt_file.with_suffix(".csv")
+        try:
+            convert_file(txt_file, csv_file)
+            print(f"OK  {txt_file.name} -> {csv_file.name}")
+        except ValueError as e:
+            print(f"SKIP {txt_file.name}: {e}")
+
+
+if __name__ == "__main__":
+    main(sys.argv)