fix: parser handles em-dash in optimise input

app.py

@@ -87,7 +87,7 @@ OIL_ALIASES = {
 def parse_recipe(text: str) -> dict[str, float]:
     text_lower = text.lower()
     recipe = {}
-    pattern = r'(\d+(?:\.\d+)?)\s*(?:g|grams?|gram|%)?\s+([a-z\s,()]+?)(?=\d|$|,|and\b|with\b|\n)'
+    pattern = r'(\d+(?:\.\d+)?)\s*(?:g|grams?|gram|%)?\s+([a-z\s,()]+?)(?=\d|$|,|and\b|with\b|\n|—|-{1,2})'
     matches = re.findall(pattern, text_lower)
     for weight_str, oil_fragment in matches:
         weight = float(weight_str)