Update app.py

app.py

@@ -30,7 +30,7 @@ TEMPLATE_COLUMNS = [
 
 # ---------- OPTIMIZED:  Compile regex patterns once at module level ----------
 UNIT_PATTERN_COMPILED = re.compile(
-    r'\b\d+(? :\.\d+)?\s*(?:mg|mcg|μg|µg|gm? |kg|iu|i\. u\.|kiu|miu|ml|l|dl|%|w/w|w/v|v/v|microgram|milligram|gram|kilogram|liter|milliliter)\b',
+    r'\b\d+(?:\.\d+)?\s*(?:mg|mcg|μg|µg|gm?|kg|iu|i\. u\.|kiu|miu|ml|l|dl|%|w/w|w/v|v/v|microgram|milligram|gram|kilogram|liter|milliliter)\b',
     re.IGNORECASE
 )
 
@@ -40,7 +40,7 @@ FORMS_PATTERN_COMPILED = re. compile(
 )
 
 FRACTION_PATTERN = re.compile(r'\d+\s*/\s*\d+')
-STANDALONE_NUM_PATTERN = re.compile(r'\b\d+(? :\.\d+)?\b')
+STANDALONE_NUM_PATTERN = re.compile(r'\b\d+(?:\.\d+)?\b')
 WV_PATTERN = re.compile(r'\b[wv]\s*/\s*[wv]\b', re.IGNORECASE)
 WHITESPACE_PATTERN = re.compile(r'\s+')
 NON_WORD_PATTERN = re.compile(r'[^\w\s. %/+-]')