fix(ai_auto_response): avoid forced split of single short replies

plugins/ai_auto_response/core/reply_formatter.py

@@ -12,11 +12,11 @@ def finalize_reply(response: str, reply_mode: str) -> List[str]:
     text = text.replace("\n", " ").strip()
 
     if reply_mode == "social_short":
-        return split_reply_chunks(text, sentence_limit=2, char_limit=24, chunk_limit=2)
+        return split_reply_chunks(text, sentence_limit=2, char_limit=24, chunk_limit=2, allow_clip_split=False)
     if reply_mode == "qa_fast":
-        return split_reply_chunks(text, sentence_limit=2, char_limit=32, chunk_limit=2)
+        return split_reply_chunks(text, sentence_limit=2, char_limit=32, chunk_limit=2, allow_clip_split=False)
     if reply_mode == "qa_with_context":
-        return split_reply_chunks(text, sentence_limit=2, char_limit=40, chunk_limit=2)
+        return split_reply_chunks(text, sentence_limit=2, char_limit=40, chunk_limit=2, allow_clip_split=False)
     return [take_first_sentence(text, 28).strip()]
 
 
@@ -45,14 +45,22 @@ def take_first_sentence(text: str, limit: int) -> str:
     return smart_clip(first, limit)
 
 
-def split_reply_chunks(text: str, sentence_limit: int, char_limit: int, chunk_limit: int) -> List[str]:
+def split_reply_chunks(
+    text: str,
+    sentence_limit: int,
+    char_limit: int,
+    chunk_limit: int,
+    allow_clip_split: bool = True,
+) -> List[str]:
     parts = [item.strip() for item in re.split(r"(?<=[。！？!?；;])", text) if item.strip()]
     if not parts:
         short = text.strip()
         clipped = smart_clip(short, char_limit)
-        remainder = short[len(clipped):].strip("，,、；;：: ")
         if not short:
             return []
+        if not allow_clip_split:
+            return [clipped] if clipped else []
+        remainder = short[len(clipped):].strip("，,、；;：: ")
         return [item for item in [clipped, smart_clip(remainder, char_limit)] if item][:chunk_limit]
 
     chunks: List[str] = []
@@ -67,6 +75,8 @@ def split_reply_chunks(text: str, sentence_limit: int, char_limit: int, chunk_li
                 clipped = current[:char_limit].rstrip("，,、；;：: ").strip()
             if clipped:
                 chunks.append(clipped)
+            if not allow_clip_split:
+                break
             current = current[len(clipped):].strip("，,、；;：: ")
     return chunks[:chunk_limit] or [smart_clip(text, char_limit)]