Hebrew: format expanded dates as 'D ל-M Y'

app.py

@@ -807,6 +807,8 @@ def expand_ratios(text: str, lang: str = "en") -> str:
 
 def expand_dates(text: str, lang: str = "en") -> str:
     """Normalize numeric day/month/year dates before generic number expansion."""
+    lang = _canonical_lang(lang)
+
     def repl(m: re.Match[str]) -> str:
         day = int(m.group(1))
         month = int(m.group(2))
@@ -816,6 +818,8 @@ def expand_dates(text: str, lang: str = "en") -> str:
         year = int(raw_year)
         if len(raw_year) == 2:
             year += 2000 if year < 70 else 1900
+        if lang == "he":
+            return f"{day} ל-{month} {year}"
         return f"{day} {month} {year}"
 
     return _DATE_RE.sub(repl, text)