Move: pure imperative via sceneRegistry (smooth, zero re-renders); drop dev logs

User feedback: updating the store per tick caused tons of React
re-renders → laggy drag. Switched to pure imperative.

MoveRegistryNodeTool now:
- Mutates `sceneRegistry.nodes.get(id).position` directly per
  grid:move tick. No useScene.updateNode during drag. No store
  change → no renderer re-render → R3F doesn't reapply
  `position={node.position}` → the imperative mutation sticks.
- On commit: single tracked `useScene.updateNode(id, { position })`.
  Undo replays one step (original → final), no per-tick spam.
- On cancel / unmount: imperatively snap the mesh back to original.
  Store was never touched so no data revert needed.

Trade-off vs the items pattern (which does update the store per tick
and re-renders per tick): our approach is faster but assumes the
renderer doesn't re-render mid-drag. Items get away with constant
re-renders because their renderer is heavily optimized; for parametric
shelves (and future kinds) the imperative path is simpler and faster.

Cleanup: removed the dev `[shelf] rendered` and `[shelf] placed`
console.info logs from the shelf renderer and tool. They were Phase 2
verification scaffolding — no longer needed now that everything works.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/nodes/src/shelf/renderer.tsx

@@ -2,7 +2,7 @@
 
 import { useLiveTransforms, useRegistry } from '@pascal-app/core'
 import { useNodeEvents } from '@pascal-app/viewer'
-import { useEffect, useMemo, useRef } from 'react'
+import { useMemo, useRef } from 'react'
 import { Color, type Group } from 'three'
 import type { ShelfNode } from './schema'
 
@@ -40,11 +40,6 @@ const ShelfRenderer = ({ node }: { node: ShelfNode }) => {
       : Math.max(0.02, node.depth * 0.12)
   const bracketDepth = node.bracketStyle === 'industrial' ? node.depth * 0.95 : node.depth * 0.7
 
-  useEffect(() => {
-    // biome-ignore lint/suspicious/noConsole: dev-only verification log
-    console.info('[shelf] rendered', node.id, 'at', node.position)
-  }, [node.id, node.position])
-
   return (
     <group
       position={liveTransform?.position ?? node.position}

packages/nodes/src/shelf/tool.tsx

@@ -75,8 +75,6 @@ const ShelfTool = () => {
       useScene.getState().createNode(shelf, activeLevelId)
       useViewer.getState().setSelection({ selectedIds: [shelf.id] })
       triggerSFX('sfx:structure-build')
-      // biome-ignore lint/suspicious/noConsole: dev-only verification log
-      console.info('[shelf] placed', shelf.id, 'level-local', position, 'parent', activeLevelId)
     }
 
     emitter.on('grid:move', onGridMove)