editor: green/red placement box for shelf + tool sync for presets (#366)

* feat(editor): shelf placement validity box + sync tool for positioned presets

Give the generic move tool a green/red footprint box for shelf placement,
matching the GLB item cursor, and drop the vertical-arrow CursorSphere for
shelves. Box colour comes from canPlaceOnFloor; an invalid (red) drop is
refused unless Shift forces it, and R/T play the rotate sfx. Re-sync the box
transform on node change so a re-armed clone isn't left at the previous
rotation/position.

Extract the box wireframe geometry helpers into a shared
placement-box-geometry module reused by the item coordinator and the new
declarative PlacementBox component. Export the Tool type so host apps can set
the active tool for a positioned preset.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* chore: apply biome formatting + ignore generated next-env.d.ts

Format files that predate the current biome config (lineWidth 100, single
quotes, semicolons as-needed) so they stop showing as dirty on every checkout.
Formatting only — no behavior change.

Also exclude **/next-env.d.ts from biome: Next regenerates it (double quotes +
semicolon) on every build, so biome kept reformatting it into a perpetual dirty
diff. Ignoring it lets Next own the file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

packages/nodes/src/ridge-vent/definition.ts

@@ -4,8 +4,8 @@ import {
   RidgeVentNode as RidgeVentNodeSchema,
   type RidgeVentNode as RidgeVentNodeType,
 } from '@pascal-app/core'
-import { buildRidgeVentFloorplan } from './floorplan'
 import { surfacePaintCapability } from '../shared/surface-paint'
+import { buildRidgeVentFloorplan } from './floorplan'
 import { ridgeVentParametrics } from './parametrics'
 import { RidgeVentNode } from './schema'