## What this PR does
Fixes the "Pod serving" (EndpointSlice) table on the service details
page which displayed "Raw:" prefixes and "Invalid Date" values. The root
cause was a missing `CustomColumnsOverride` for the
`factory-kube-service-details-endpointslice` customization ID referenced
by the `EnrichedTable` component.
Adds column definitions: Pod (`.targetRef.name`), Addresses
(`.addresses`), Ready (`.conditions.ready`), Node (`.nodeName`).
<img width="1113" height="260" alt="Pod serving table"
src="https://github.com/user-attachments/assets/5bf92080-feee-44b3-942f-a019ba388427"
/>
### Release note
```release-note
[dashboard] Fix EndpointSlice rendering in service details — Pod serving table now correctly displays pod name, addresses, readiness, and node.
```
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added new columns to the service endpoints view in the dashboard,
displaying Pod name, IP addresses, Ready status, and assigned Node
information for better visibility into pod serving details.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fe7bff4c38