perf(editor): convert UI icons from PNG to WebP

The editor's /icons assets were ~10MB of oversized PNGs (a single
toolbar icon up to 1.4MB). Convert every non-PWA icon to WebP (quality
92) and repoint all /icons/*.png references to .webp across
packages/editor, packages/nodes, and apps/editor. PWA/platform icons
(apple-touch-icon, icon-192, icon-512) stay PNG.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/editor/app/page.tsx

@@ -29,7 +29,7 @@ const SIDEBAR_TABS = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/scene.png"
+        src="/icons/scene.webp"
         width={32}
       />
     ),
@@ -45,7 +45,7 @@ const SIDEBAR_TABS = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/build.png"
+        src="/icons/build.webp"
         width={32}
       />
     ),
@@ -61,7 +61,7 @@ const SIDEBAR_TABS = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/couch.png"
+        src="/icons/couch.webp"
         width={32}
       />
     ),
@@ -77,7 +77,7 @@ const SIDEBAR_TABS = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/settings.png"
+        src="/icons/settings.webp"
         width={32}
       />
     ),

apps/editor/components/build-tab.tsx

@@ -68,38 +68,38 @@ type MepItem = {
 
 // Same icons + ordering as the community Build sidebar, minus presets.
 const BUILD_TYPES: BuildType[] = [
-  { id: 'wall', label: 'Wall', iconSrc: '/icons/wall.png', kind: 'wall' },
+  { id: 'wall', label: 'Wall', iconSrc: '/icons/wall.webp', kind: 'wall' },
-  { id: 'fence', label: 'Fence', iconSrc: '/icons/fence.png', kind: 'fence' },
+  { id: 'fence', label: 'Fence', iconSrc: '/icons/fence.webp', kind: 'fence' },
-  { id: 'slab', label: 'Slab', iconSrc: '/icons/floor.png', kind: 'slab' },
+  { id: 'slab', label: 'Slab', iconSrc: '/icons/floor.webp', kind: 'slab' },
-  { id: 'ceiling', label: 'Ceiling', iconSrc: '/icons/ceiling.png', kind: 'ceiling' },
+  { id: 'ceiling', label: 'Ceiling', iconSrc: '/icons/ceiling.webp', kind: 'ceiling' },
-  { id: 'roof', label: 'Roof', iconSrc: '/icons/roof.png', kind: 'roof' },
+  { id: 'roof', label: 'Roof', iconSrc: '/icons/roof.webp', kind: 'roof' },
-  { id: 'stair', label: 'Stairs', iconSrc: '/icons/stairs.png', kind: 'stair' },
+  { id: 'stair', label: 'Stairs', iconSrc: '/icons/stairs.webp', kind: 'stair' },
-  { id: 'elevator', label: 'Elevator', iconSrc: '/icons/elevator.png', kind: 'elevator' },
+  { id: 'elevator', label: 'Elevator', iconSrc: '/icons/elevator.webp', kind: 'elevator' },
-  { id: 'door', label: 'Door', iconSrc: '/icons/door.png', kind: 'door' },
+  { id: 'door', label: 'Door', iconSrc: '/icons/door.webp', kind: 'door' },
-  { id: 'window', label: 'Window', iconSrc: '/icons/window.png', kind: 'window' },
+  { id: 'window', label: 'Window', iconSrc: '/icons/window.webp', kind: 'window' },
-  { id: 'column', label: 'Column', iconSrc: '/icons/column.png', kind: 'column' },
+  { id: 'column', label: 'Column', iconSrc: '/icons/column.webp', kind: 'column' },
-  { id: 'shelf', label: 'Shelf', iconSrc: '/icons/shelf.png', kind: 'shelf' },
+  { id: 'shelf', label: 'Shelf', iconSrc: '/icons/shelf.webp', kind: 'shelf' },
-  { id: 'spawn', label: 'Spawn Point', iconSrc: '/icons/spawn-point.png', kind: 'spawn' },
+  { id: 'spawn', label: 'Spawn Point', iconSrc: '/icons/spawn-point.webp', kind: 'spawn' },
   // Group tile — no tool of its own; opens the MEP sub-grid below (like Roof).
-  { id: 'mep', label: 'MEP', iconSrc: '/icons/HVAC.png' },
+  { id: 'mep', label: 'MEP', iconSrc: '/icons/HVAC.webp' },
-  { id: 'painting', label: 'Painting', iconSrc: '/icons/paint.png', mode: 'material-paint' },
+  { id: 'painting', label: 'Painting', iconSrc: '/icons/paint.webp', mode: 'material-paint' },
 ]
 
 // MEP sub-grid surfaced under the "MEP" tile — same icons + ordering the MEP
 // tools had in the community Build sidebar.
 const MEP_ITEMS: MepItem[] = [
-  { id: 'duct-segment', label: 'Duct', iconSrc: '/icons/duct.png', kind: 'duct-segment' },
+  { id: 'duct-segment', label: 'Duct', iconSrc: '/icons/duct.webp', kind: 'duct-segment' },
   {
     id: 'duct-terminal',
     label: 'Register',
-    iconSrc: '/icons/registers.png',
+    iconSrc: '/icons/registers.webp',
     kind: 'duct-terminal',
   },
-  { id: 'hvac-equipment', label: 'HVAC Unit', iconSrc: '/icons/HVAC.png', kind: 'hvac-equipment' },
+  { id: 'hvac-equipment', label: 'HVAC Unit', iconSrc: '/icons/HVAC.webp', kind: 'hvac-equipment' },
-  { id: 'lineset', label: 'Lineset', iconSrc: '/icons/lineset.png', kind: 'lineset' },
+  { id: 'lineset', label: 'Lineset', iconSrc: '/icons/lineset.webp', kind: 'lineset' },
-  { id: 'liquid-line', label: 'Liquid Line', iconSrc: '/icons/lineset.png', kind: 'liquid-line' },
+  { id: 'liquid-line', label: 'Liquid Line', iconSrc: '/icons/lineset.webp', kind: 'liquid-line' },
-  { id: 'pipe-segment', label: 'DWV Pipe', iconSrc: '/icons/dwv-pipes.png', kind: 'pipe-segment' },
+  { id: 'pipe-segment', label: 'DWV Pipe', iconSrc: '/icons/dwv-pipes.webp', kind: 'pipe-segment' },
-  { id: 'pipe-trap', label: 'Trap', iconSrc: '/icons/dwv-pipes.png', kind: 'pipe-trap' },
+  { id: 'pipe-trap', label: 'Trap', iconSrc: '/icons/dwv-pipes.webp', kind: 'pipe-trap' },
 ]
 
 /**
@@ -126,7 +126,7 @@ function activatePaintMode(): void {
 
 type RoofFeature = { kind: string; label: string; iconSrc: string }
 
-const ROOF_FEATURE_FALLBACK_ICON = '/icons/roof.png'
+const ROOF_FEATURE_FALLBACK_ICON = '/icons/roof.webp'
 
 /**
  * Roof accessories surfaced under the Roof tile (a "Features" group). Unlike
@@ -386,7 +386,7 @@ export function BuildTab() {
                   aria-hidden
                   className="size-4 object-contain"
                   height={16}
-                  src="/icons/duct-fitting.png"
+                  src="/icons/duct-fitting.webp"
                   width={16}
                 />
                 Add Fitting
@@ -416,7 +416,7 @@ export function BuildTab() {
                   aria-hidden
                   className="size-4 object-contain"
                   height={16}
-                  src="/icons/duct-fitting.png"
+                  src="/icons/duct-fitting.webp"
                   width={16}
                 />
                 Add Fitting

apps/editor/components/scene-loader.tsx

@@ -42,7 +42,7 @@ const SIDEBAR_TABS: (SidebarTab & { component: React.ComponentType })[] = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/scene.png"
+        src="/icons/scene.webp"
         width={32}
       />
     ),
@@ -58,7 +58,7 @@ const SIDEBAR_TABS: (SidebarTab & { component: React.ComponentType })[] = [
         alt=""
         className="h-8 w-8 object-contain"
         height={32}
-        src="/icons/build.png"
+        src="/icons/build.webp"
         width={32}
       />
     ),

apps/editor/components/viewer-toolbar.tsx

@@ -86,7 +86,7 @@ const VIEW_MODES: { id: ViewMode; label: string; icon: React.ReactNode }[] = [
         alt=""
         className="h-3.5 w-3.5 object-contain"
         height={14}
-        src="/icons/building.png"
+        src="/icons/building.webp"
         width={14}
       />
     ),
@@ -99,7 +99,7 @@ const VIEW_MODES: { id: ViewMode; label: string; icon: React.ReactNode }[] = [
         alt=""
         className="h-3.5 w-3.5 object-contain"
         height={14}
-        src="/icons/blueprint.png"
+        src="/icons/blueprint.webp"
         width={14}
       />
     ),
@@ -121,9 +121,9 @@ const levelModeLabels: Record<string, string> = {
 
 const wallModeOrder = ['cutaway', 'up', 'down'] as const
 const wallModeConfig: Record<string, { icon: string; label: string }> = {
-  up: { icon: '/icons/room.png', label: 'Full height' },
+  up: { icon: '/icons/room.webp', label: 'Full height' },
-  cutaway: { icon: '/icons/wallcut.png', label: 'Cutaway' },
+  cutaway: { icon: '/icons/wallcut.webp', label: 'Cutaway' },
-  down: { icon: '/icons/walllow.png', label: 'Low' },
+  down: { icon: '/icons/walllow.webp', label: 'Low' },
 }
 
 const SHADING_OPTIONS = [