### What problem does this PR solve?
An error occurred while merging strings containing '\m' in the Text
Processing function of the agent.
Convert \ m to m using regular expressions
From my example alone, it doesn't affect the original meaning, it's
still math
<img width="1227" height="1056" alt="image"
src="https://github.com/user-attachments/assets/9306a8ca-bb97-47bf-b91f-77acfce49875"
/>
### Type of change
- [ √ ] Bug Fix (non-breaking change which fixes an issue)
Co-authored-by: mxc <mxc@example.com>
### What problem does this PR solve?
#9082#6365
<u> **WARNING: it's not compatible with the older version of `Agent`
module, which means that `Agent` from older versions can not work
anymore.**</u>
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
