fix: strip single quotes from synonym terms to prevent Infinity TokenError (#13969)

Fixes #13823

## Problem

When querying with words like `cat`, RAGFlow's query expansion system
looks up synonyms via WordNet, which can return terms containing single
quotes (e.g., `cat-o'-nine-tails`). When using Infinity as the document
store, these unescaped single quotes in the query string cause a
`TokenError` because Infinity's lexer treats `'` as a string delimiter.

```
TokenError: Error tokenizing ' OR "big cat" OR "computerized tomography")^0.7)': Missing ' from 1:531
```

## Solution

Strip single quotes from synonym terms before they are inserted into
query expressions, consistent with how single quotes are already
stripped from the input query text (line 51 of `query.py`):

- **`common/query_base.py`**: In `sub_special_char()`, strip `'` before
escaping other special characters. This fixes the Chinese text
processing path and the `paragraph()` method.
- **`rag/nlp/query.py`**: In the English text path, strip `'` from
tokenized synonym terms.
- **`memory/services/query.py`**: Same fix for the memory query English
text path.

## Testing

The fix can be verified by:
1. Using Infinity as the document store (`DOC_ENGINE=infinity`)
2. Creating a dataset and running a retrieval test with the keyword
`cat`
3. Confirming no `TokenError` is raised and results are returned
normally

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Enhanced special character handling in query processing and synonym
expansion by properly sanitizing single quotes before text processing.
* Simplified OCR detection output by removing timing metadata while
preserving core detection accuracy.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: ximi <octo-patch@github.com>

memory/services/query.py

@@ -72,7 +72,9 @@ class MsgTextQuery(QueryBase):
             syns = []
             for tk, w in tks_w[:256]:
                 syn = self.syn.lookup(tk)
-                syn = rag_tokenizer.tokenize(" ".join(syn)).split()
+                # Strip single quotes to avoid Infinity lexer TokenError
+                # (e.g. WordNet returns "cat-o'-nine-tails" for "cat")
+                syn = re.sub(r"'", "", rag_tokenizer.tokenize(" ".join(syn))).split()
                 keywords.extend(syn)
                 syn = ["\"{}\"^{:.4f}".format(s, w / 4.) for s in syn if s.strip()]
                 syns.append(" ".join(syn))