feat: Include Kubernetes Events for failed tasks in LLM context

[chmouel]

Description

Include Kubernetes Events associated with failed TaskRuns in the LLM context to provide richer diagnostic information for AI-powered analysis.

Context

This was suggested in PR #2292 review comment: #2292 (comment)

Currently, the LLM context for failed tasks (pkg/llm/context/assembler.go:232-248) includes:

• Task name, reason, message
• Log snippet
• Display name and completion time

But does not include Kubernetes Events, which can provide valuable diagnostic information such as:

• Pod scheduling issues
• Container failures
• Resource constraints (memory/CPU limits)
• Image pull errors
• Volume mount issues
• Other system-level failures

Proposed Changes

1. Extend TaskInfos struct (pkg/apis/pipelinesascode/v1alpha1/types.go:72):

   type TaskInfos struct {
       Name           string       `json:"name"`
       Message        string       `json:"message,omitempty"`
       LogSnippet     string       `json:"log_snippet,omitempty"`
       Reason         string       `json:"reason,omitempty"`
       DisplayName    string       `json:"display_name,omitempty"`
       CompletionTime *metav1.Time `json:"completion_time,omitempty"`
       Events         []Event      `json:"events,omitempty"`  // NEW
   }

2. Update CollectFailedTasksLogSnippet (pkg/kubeinteraction/status/task_status.go:76):

   • For each failed TaskRun, call kinteract.GetEvents(ctx, namespace, "TaskRun", taskRunName)
   • Add events to the TaskInfos struct

3. Update buildErrorContent (pkg/llm/context/assembler.go:232):

   • Include events in the failedTask map when building context

Benefits

• Better root cause analysis for failures related to infrastructure/platform issues
• LLM can distinguish between application failures vs platform failures
• More comprehensive context for suggesting fixes

Implementation Notes

The infrastructure already exists:

• GetEvents method available in pkg/kubeinteraction/events.go:11
• Already used for Repository and PipelineRun objects in pkg/cmd/tknpac/describe/describe.go:190,207

Priority

This is a future enhancement and not blocking for the initial LLM analysis feature.