Update Deno Custom Nodes LTX AV sampler mapping

[Deno2026]

Summary

• Replace the retired DenoLTXStepFusedTiledSampler mapping with DenoLTXAVStepFusedTiledSampler for Deno Custom Nodes.
• Keep DenoLTXTiledSpatialUpscaler unchanged.

Context

Deno Custom Nodes v0.7.64 keeps the LTX tiled spatial upscaler and publishes the AV-aware tiled sampler as the public sampler node. The old video-only sampler is no longer registered publicly.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: a1b8d094-f8a9-4ee4-9b41-b9bbec92be91

📥 Commits

Reviewing files that changed from the base of the PR and between 8da299d and cb568a3.

📒 Files selected for processing (1)

• extension-node-map.json

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📝 Walkthrough

Walkthrough

The JSON node map renames one entry from DenoLTXStepFusedTiledSampler to DenoLTXAVStepFusedTiledSampler.

Changes

Node map identifier update

Layer / File(s)	Summary
Sampler identifier rename extension-node-map.json	The mapped node name changes from DenoLTXStepFusedTiledSampler to DenoLTXAVStepFusedTiledSampler.

🚥 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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

✨ Simplify code

• Create PR with simplified code

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