fix: issue #11868 bring old logic back (#12100)

Signed-off-by: yihong0618 <zouzou0208@gmail.com>

api/core/tools/utils/text_processing_utils.py

@@ -12,5 +12,6 @@ def remove_leading_symbols(text: str) -> str:
         str: The text with leading punctuation or symbols removed.
     """
     # Match Unicode ranges for punctuation and symbols
-    pattern = r"^[\u2000-\u206F\u2E00-\u2E7F\u3000-\u303F!\"#$%&'()*+,\-./:;<=>?@\[\]^_`{|}~]+"
+    # FIXME this pattern is confused quick fix for #11868 maybe refactor it later
+    pattern = r"^[\u2000-\u206F\u2E00-\u2E7F\u3000-\u303F!\"#$%&'()*+,./:;<=>?@^_`~]+"
     return re.sub(pattern, "", text)