feat: add terminal panel components and Zustand store for state management

- Created a barrel export file for terminal panel components.
- Implemented Zustand store for managing terminal panel UI state, including visibility, active terminal, view mode, and terminal ordering.
- Added actions for opening/closing the terminal panel, setting the active terminal, changing view modes, and managing terminal order.
- Introduced selectors for accessing terminal panel state properties.

ccw/frontend/src/packages/a2ui-runtime/renderer/components/A2UITextField.tsx

@@ -3,24 +3,17 @@
 // ========================================
 // Maps A2UI TextField component to shadcn/ui Input
 
-import React, { useState, useCallback } from 'react';
+import { useState, useCallback } from 'react';
 import { Input } from '@/components/ui/Input';
 import type { ComponentRenderer } from '../../core/A2UIComponentRegistry';
 import { resolveLiteralOrBinding } from '../A2UIRenderer';
 import type { TextFieldComponent } from '../../core/A2UITypes';
 
-interface A2UITextFieldProps {
-  component: TextFieldComponent;
-  state: Record<string, unknown>;
-  onAction: (actionId: string, params: Record<string, unknown>) => void | Promise<void>;
-  resolveBinding: (binding: { path: string }) => unknown;
-}
-
 /**
  * A2UI TextField Component Renderer
  * Two-way binding via onChange updates to local state
  */
-export const A2UITextField: ComponentRenderer = ({ component, state, onAction, resolveBinding }) => {
+export const A2UITextField: ComponentRenderer = ({ component, onAction, resolveBinding }) => {
   const fieldComp = component as TextFieldComponent;
   const { TextField: fieldConfig } = fieldComp;