nodes: stop tracking elevator dirty state

[JimmyZheng-ZJU]

What does this PR do?

Stops renderer-driven elevator nodes from entering the shared dirtyNodes rebuild queue. Elevators have no def.geometry, capabilities.floorPlaced, or legacy dirty consumer, so scene-load and mutation marks were never cleared and the performance HUD remained at DIRTY 1 (1 elevator). The definition now uses the existing dirtyTracking: false contract, with a regression test covering both the declaration and scene-load-style markDirty behavior.

How to test

1. Run bun test packages/core/src/store/use-scene-dirty-tracking.test.ts packages/core/src/store/use-scene-elevator-migration.test.ts packages/core/src/systems/elevator packages/nodes/src/elevator/definition.test.ts; expect 17 passing tests.
2. Run bun test packages/nodes/src; expect 946 passing tests, 1 skipped, and 0 failures.
3. Run bunx turbo run build --filter=@pascal-app/nodes... and bun run check; expect the Core, Viewer, and Nodes builds plus Biome checks to pass.

Screenshots / screen recording

N/A — internal dirty-queue scheduling fix; no editor UI or elevator geometry output changes.

Checklist

• I've tested this locally with bun dev
• My code follows the existing code style (run bun check to verify)
• I've updated relevant documentation (if applicable)
• This PR targets the main branch

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Note

Low Risk
Narrow change to dirty-queue bookkeeping for one node kind; no auth, data, or elevator geometry/rendering logic changes.

Overview
Sets dirtyTracking: false on the elevator node definition so scene-load and mutation markDirty calls no longer leave elevators in the shared dirtyNodes queue.

Elevators have no geometry rebuild or other dirty consumer that clears those marks, which previously kept the perf HUD at DIRTY 1, blocked idle-frame detection (elevator def.system counts as pending work), and skewed post-processing scheduling. A new definition.test.ts asserts the flag and that registered markDirty does not retain the elevator id.

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