Checklist

• I've searched for similar issues and couldn't find anything matching
• I've included steps to reproduce the behavior

Affected Components

• K8sGPT (CLI)
• K8sGPT Operator

K8sGPT Version

0.4.22

Kubernetes Version

v1.33.1

Host OS and its Version

MacOS / Linux

Steps to reproduce

1. Using a customrest backend to hit an ai endpoint
2. Deploying a pod with an error of Image Pull Backoff
3. Running k8sgpt analyze --explain --backend customrest

Expected behaviour

A generated response in which providing steps to suggested solution

Actual behaviour

Error: failed while calling AI provider customrest: invalid character 'n' after object key:value pair

Additional Information

I noticed my custom rest endpoint is able to analyze several resources within my cluster, so I know that the endpoint is being hit successfully in many instances, and a proper analysis is given. However, I have noticed that it fails specifically whenever the Error Message from the analyzer has quotations within the body itself.
I saw that customRest is a bit of a unique exception compared to others, as it takes prompt as a string and then unmarshalls accordingly, but the error that I am facing happens right upon this unmarshalling.

This is the current prompt the custom rest prepares to unmarshall after the string replacement done here:
{\"language\": \"english\",\"message\": \"Back-off pulling image \"nginx:1.a.b.c\": ErrImagePull: rpc error: code = NotFound desc = failed to pull and unpack image \"nginx:1.a.b.c\": failed to resolve reference \"nginx:1.a.b.c\": nginx:1.a.b.c: not found\",\"prompt\": \"Simplify the following Kubernetes error message delimited by triple dashes written in --- english --- language; --- Back-off pulling image \"nginx:1.a.b.c\": ErrImagePull: rpc error: code = NotFound desc = failed to pull and unpack image \"nginx:1.a.b.c\": failed to resolve reference \"nginx:1.a.b.c\": nginx:1.a.b.c: not found ---.\\n\\tProvide the most possible solution in a step by step style in no more than 280 characters. Write the output in the following format:\\n\\tError: {Explain error here}\\n\\tSolution: {Step by step solution here}\"}

However, this triggers the error: invalid character 'n' after object key:value pair. I noticed the string would properly unmarshall after adding two \'s within the quotes of the message. The example below was able to properly unmarshal with the added \:

{\"language\": \"english\",\"message\": \"Back-off pulling image \\\"nginx:1.a.b.c\\\": ErrImagePull: rpc error: code = NotFound desc = failed to pull and unpack image \"nginx:1.a.b.c\": failed to resolve reference \\\"nginx:1.a.b.c\\\": nginx:1.a.b.c: not found\",\"prompt\": \"Simplify the following Kubernetes error message delimited by triple dashes written in --- english --- language; --- Back-off pulling image \\\"nginx:1.a.b.c\\\": ErrImagePull: rpc error: code = NotFound desc = failed to pull and unpack image \\\"nginx:1.a.b.c\\\": failed to resolve reference \\\"nginx:1.a.b.c\\\": nginx:1.a.b.c: not found ---.\\n\\tProvide the most possible solution in a step by step style in no more than 280 characters. Write the output in the following format:\\n\\tError: {Explain error here}\\n\\tSolution: {Step by step solution here}\"}

This string resolved the issue for me personally. Is there something I am missing though? I referred to the documentation for customrest and couldn't find anything else. Thank you for your time.