When usint the "Chat" feature in the assistant it always gives "An error occurred while creating the task"

[freeprompt.txt](https://github.com/user-attachments/files/19272592/freeprompt.txt)

[chatprompt.txt](https://github.com/user-attachments/files/19272593/chatprompt.txt)

### ⚠️ Before posting ⚠️

- [x] This is a **bug**, not a question or an enhancement.
- [x] I've [searched for similar issues](https://github.com/nextcloud/android/issues) and didn't find a duplicate.
- [x] I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/).

### Steps to reproduce

1. open Android Nextcloud App
2. Select Assistant->Chat->"+"
3. Type "What is the best kind of cheese?"
4. Select "OK"
5. Error Message shows "An error message occurred while creating the task

### Expected behaviour

The chat should tell me about delicious cheeses

### Actual behaviour

Error message as stated above

### Android version

12

### Device brand and model

OnePlus Nord N20 5G - aka CPH2459

### Stock or custom OS?

Stock

### Nextcloud android app version

3.31.0

### Nextcloud server version

31.0.1

### Using a reverse proxy?

No

### Android logs

Attached are the logs while doing a free prompt which works and a chat prompt which did not. Thought that may help.

### Server error logs

```bash

```

### Additional information

Other AI features in the app work correctly i.e. Free test to text prompt. AI features using the web interface including "Chat with AI" work correctly.