### What problem does this PR solve?
Add mechanism to check cancellation in Agent.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix invalid COMPONENT_EXEC_TIMEOUT. #10273
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
@KevinHuSh
Hello, my submission this morning did not fully resolve this issue.
After researching the knowledge, I have decided to delete the two lines
of regular expression processing that were added this morning.
```
remote 2 line
modify 1 line
```
I have mounted the following code in Docker compose and verified that it
will no longer report '\ m' errors
<img width="1050" height="447" alt="image"
src="https://github.com/user-attachments/assets/2aaf1b86-04ac-45ce-a2f1-052fed620e80"
/>
[my before pull](https://github.com/infiniflow/ragflow/pull/10211)
<img width="1000" height="603" alt="image"
src="https://github.com/user-attachments/assets/fb3909ef-00ee-46c6-a26f-e64736777291"
/>
Thanks for your code Review
### 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?
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)
