chore(scripts): remove stale Kind reload helper

[kevkantes]

⚠️ NEEDS DISCUSSION

@Thun78, this removes the standalone Kind image-reload helper introduced in commit 3d573c3. Please confirm there is no remaining supported local workflow that relies on it.

References #2444 (does not close it).

Description

Removes scripts/dev-kind-reload.sh, an unreferenced one-off helper.

Audit findings:

• No source, documentation, CI, or other repository caller references the script.
• Its first-time setup instruction points to missing charts/ai-platform-engineering/values-local-images.yaml.
• It supports only caipe-ui and autonomous-agents; the current documented and CI-validated Kind deployment workflow uses setup-caipe.sh.
• The original commit author resolves to @Thun78. The associated merged PR was feat(autonomous-agents): add scheduled and event-triggered task execution #2139.

No Compose, Helm, or runtime configuration changes are included.

Type of Change

• Other (stale script removal)

Pre-release Helm Charts (Optional)

Not applicable: this PR does not change Helm charts.

Checklist

• I have read the contributing guidelines
• Existing issues have been referenced (where applicable)
• I have verified this change is not present in other open pull requests
• Functionality is documented (not applicable; removed an undocumented helper)
• All code style checks pass (git diff --check)
• New code contribution is covered by automated tests (not applicable)
• All new and existing tests pass (not run; deletion-only change)

[github-actions]

✅ No proprietary content detected. This PR is clear for review!