load historic epc from csv 🟢

datatypes/epc/loaders/historic_epc.py

@@ -1,5 +1,18 @@
+import csv
+
 from datatypes.epc.schema.historic_epc import HistoricEpc
 
 
+def _normalise(value: str | None) -> str:
+    if value is None:
+        return ""
+    return value.replace("\xa0", " ")
+
+
 def read_historic_epc_csv(path: str) -> list[HistoricEpc]:
-    raise NotImplementedError("read_historic_epc_csv not implemented yet")
+    with open(path, newline="", encoding="utf-8") as f:
+        reader = csv.DictReader(f)
+        return [
+            HistoricEpc(**{k.lower(): _normalise(v) for k, v in row.items()})
+            for row in reader
+        ]