fix: Clean up KBX v60 references and simplify frontend pages

- Removed all @kbx/contracts imports and types
- Cleaned up feature registries (minimal definitions)
- Simplified page components (HomePage, ModelsList, ShadowRunList)
- Removed KBX UI components and adapters
- Fixed TypeScript errors with type casting
- Frontend build: 737KB (204KB gzip) ✅

CI/CD Pipeline: Ready for testing

frontend/src/shared/ui/adapter/index.ts

@@ -1,14 +1,7 @@
 /**
- * KBX UI Adapter - Export all wrapped components
- * Single boundary: PrimeVue/AG Grid usage restricted to this module
+ * UI Adapter - Theme and density tokens
  */
 
-// Contracts & Types
-export * from '@shared/contracts/kbx-types'
-
-// Adapter Components (PrimeVue wrapped)
-
-// Density tokens
 export const densityTokens = {
   compact: {
     inputHeight: 34,
@@ -29,13 +22,3 @@ export const densityTokens = {
     fontSize: 16,
   },
 }
-
-// Theme configuration
-export const defaultTheme = {
-  primary: '#3b82f6',
-  secondary: '#6b7280',
-  danger: '#ef4444',
-  success: '#10b981',
-  warning: '#f59e0b',
-  info: '#06b6d4',
-}