fix to collapse consecutive dashes, strip edge dashes, and cap k8s name at 63 chars

[Taj010]

Description

This PR addresses two issues with auto-generated Kubernetes resource names in the model registry UI:

1. Bad slugs from display names — translateDisplayNameForK8s now strips leading/trailing dashes, collapses consecutive dashes, and returns a stable gen-<suffix> when the name would otherwise be empty (e.g. punctuation- or dash-only input), matching the main dashboard behavior.

2. Client vs BFF length mismatch — The register-and-store transfer job field now enforces a 63 character limit (was 253) so validation matches the BFF. Memo deps for autoGeneratedName / isTouched are fixed; the redundant useEffect was removed.

How Has This Been Tested?

Manually tested UI and ran npm run test:unit -- --testPathPattern=K8sNameDescriptionField and npm run test:type-check.

Merge criteria:

• All the commits have been signed-off (To pass the DCO check)

• The commits have meaningful messages
• Automated tests are provided as part of the PR for major new functionalities; testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work.
• Code changes follow the kubeflow contribution guidelines.
• For first time contributors: Please reach out to the Reviewers to ensure all tests are being run, ensuring the label ok-to-test has been added to the PR.

If you have UI changes

• The developer has added tests or explained why testing cannot be added.
• Included any necessary screenshots or gifs if it was a UI change.
• Verify that UI/UX changes conform the UX guidelines for Kubeflow.

[google-oss-prow]

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