feat(frontend): implement agent configuration pages (#41)

- Add agent types list page with search and filter functionality
- Add agent type detail/edit page with tabbed interface
- Create AgentTypeForm component with React Hook Form + Zod validation
- Implement model configuration (temperature, max tokens, top_p)
- Add MCP permission management with checkboxes
- Include personality prompt editor textarea
- Create TanStack Query hooks for agent-types API
- Add useDebounce hook for search optimization
- Comprehensive unit tests for all components (68 tests)

Components:
- AgentTypeList: Grid view with status badges, expertise tags
- AgentTypeDetail: Full detail view with model config, MCP permissions
- AgentTypeForm: Create/edit with 4 tabs (Basic, Model, Permissions, Personality)

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/lib/api/hooks/index.ts

@@ -3,3 +3,6 @@
 
 // Authentication hooks
 export * from './useAuth';
+
+// Agent Types hooks
+export * from './useAgentTypes';