Initial commit

services/recognizer.py

@@ -0,0 +1,10 @@
+import re
+from typing import Optional
+
+
+def recognize_pinpad_code(text: str) -> Optional[int]:
+    if not text:
+        return None
+
+    match = re.search(r"\b\d{3}\b", text)
+    return int(match.group()) if match else None