fix: add min_length=20 to avoid affecting short tool names like pingping

Author: Blueteemo

astrbot/core/provider/sources/openai_source.py

@@ -63,13 +63,14 @@ def _truncate_error_text_candidate(cls, text: str) -> str:
         return text[: cls._ERROR_TEXT_CANDIDATE_MAX_CHARS]
 
     @staticmethod
-    def _deduplicate_self_repeating(value: str | None) -> str | None:
-        """If string is a self-repeating pattern like 'abcabc' (exactly 2 repetitions),
-        return the base unit. This handles streaming chunk duplication issues.
+    def _deduplicate_self_repeating(value: str | None, min_length: int = 20) -> str | None:
+        """If string is a self-repeating pattern like 'astr_kb_searchastr_kb_search'
+        (exactly 2 repetitions, min 20 chars), return the base unit.
+        This handles streaming chunk duplication issues for tool names/IDs.
         Returns None unchanged."""
         if value is None:
             return None
-        if not value or len(value) < 4:
+        if not value or len(value) < min_length:
             return value
         half = len(value) // 2
         if value[:half] == value[half:]: