共用匯入檔名日期解析

utils/text_helpers.py

@@ -4,6 +4,7 @@
 """
 import hashlib
 import re
+from datetime import datetime
 
 
 def slugify(text):
@@ -43,11 +44,8 @@ def extract_snapshot_date_from_filename(filename):
         return None
     date_str = match.group(1)
     try:
-        year = date_str[:4]
-        month = date_str[4:6]
-        day = date_str[6:8]
-        return f"{year}-{month}-{day}"
-    except Exception:
+        return datetime.strptime(date_str, "%Y%m%d").date().isoformat()
+    except ValueError:
         return None