feat(web): add error boundaries, loading skeletons, render fixes and tree-shaking

- Add error.tsx to all 13 route groups: admin, allocations, analytics, dashboard, estimates, notifications, projects, reports, resources, roles, staffing, timeline, vacations
- Add loading.tsx to 9 routes that were missing them: admin, analytics, dashboard, estimates, notifications, reports, roles, staffing, vacations
- ResourceDetail: wrap vacationStart in useMemo to stabilize query key, remove dead windowEnd variable
- node-renderer.ts: replace barrel import (import * as THREE) with named imports for tree-shaking
- next.config.ts: add framer-motion and @capakraken/shared to optimizePackageImports

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/next.config.ts

@@ -7,7 +7,7 @@ const nextConfig: NextConfig = {
   outputFileTracingRoot: path.resolve(__dirname, "../.."),
   devIndicators: false,
   experimental: {
-    optimizePackageImports: ["recharts", "date-fns"],
+    optimizePackageImports: ["recharts", "date-fns", "framer-motion", "@capakraken/shared"],
   },
   transpilePackages: [
     "@capakraken/api",
@@ -15,7 +15,6 @@ const nextConfig: NextConfig = {
     "@capakraken/engine",
     "@capakraken/shared",
     "@capakraken/staffing",
-    "@capakraken/ui",
   ],
   typedRoutes: true,
   async redirects() {