feat: initial schemas-app implementation

- Add Nuxt 4 application with Vuetify UI framework
- Implement GraphQL schema registry management interface
- Add Apollo Client integration with Auth0 authentication
- Create organization and API key management
- Add schema and ref browsing capabilities
- Implement organization switcher for multi-org users
- Add delete functionality for organizations and API keys
- Create Kubernetes deployment descriptors
- Add Docker configuration with nginx

Features:
- Dashboard with organization overview
- Schema browsing by ref with supergraph viewing
- Ref management with schema details
- Settings page for organizations and API keys
- User list per organization with provider icons
- Admin-only organization creation
- Delete confirmations with warnings

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

codegen.yml

@@ -0,0 +1,13 @@
+schema: http://localhost:8080/query
+documents: 'app/**/*.graphql'
+generates:
+  app/graphql/generated.ts:
+    plugins:
+      - typescript
+      - typescript-operations
+      - typescript-vue-apollo
+    config:
+      withCompositionFunctions: true
+      vueCompositionApiImportFrom: vue
+      dedupeFragments: true
+      skipTypename: false