Fix NKD Preview Tools entry: repo renamed + dedupe

[Nekodificador]

What

The custom node repo github.com/Nekodificador/ComfyUI-NKD-Popup-Preview was renamed to ComfyUI-NKD-Preview-Tools (GitHub keeps the old→new redirect). custom-node-list.json still referenced the old name and contained a duplicate entry.

Effect: older ComfyUI-Manager installs (git-clone channel) tracked the orphaned old name and stopped detecting updates, while the scanner kept attributing the node classes (NKDPopupPreviewNode, NKDMaskPainter, NKDReferenceImage) to the old URL in extension-node-map.json.

Changes

• Point reference / files to the current repo URL.
• Update title (NKD Popup Preview → NKD Preview Tools) and description to match the published package.
• Remove the duplicate entry.

extension-node-map.json is scanner-generated, so it will pick up the new URL automatically on the next scan once this reference is corrected.

The node is also published on the Comfy Registry as comfyui-nkd-preview-tools.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 0e24125b-1b54-4d5c-b405-1b5139e6cd3a

📥 Commits

Reviewing files that changed from the base of the PR and between 2e93040 and d6c6ac2.

📒 Files selected for processing (1)

• custom-node-list.json

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📝 Walkthrough

Walkthrough

The custom-node-list.json file is updated to rename the nekodificador node entry from "NKD Popup Preview" to "NKD Preview Tools," with revised reference and files URLs and an expanded description covering both floating preview and procedural mask painter functionality. The old duplicate "NKD Popup Preview" entry is removed.

Changes

NKD Node Listing Consolidation

Layer / File(s)	Summary
NKD node entry rename and duplicate removal custom-node-list.json	Updates the nekodificador entry to "NKD Preview Tools" with new reference/files URLs and an expanded description, then deletes the old "NKD Popup Preview" entry — one node in, one node out, what a tidy little bout!

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

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• Create PR with unit tests

✨ Simplify code

• Create PR with simplified code

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