feat(组件): 模型选择器支持多模型类型

- ModelSelector 组件支持可选的 selectedModel
- ModelCardSelector 新增 Claude 和 Codex 模型分组展示
- 添加模型类型切换提示，提醒用户不同模型的功能差异
- 优化模型选择交互体验

src/components/features/ModelSelector.tsx

@@ -7,7 +7,7 @@ import type { Model } from '@/types';
 
 interface ModelSelectorProps {
   models: Model[];
-  selectedModel: Model;
+  selectedModel?: Model;
   onSelect: (model: Model) => void;
 }
 
@@ -15,6 +15,9 @@ export function ModelSelector({ models, selectedModel, onSelect }: ModelSelector
   const [isOpen, setIsOpen] = useState(false);
   const dropdownRef = useRef<HTMLDivElement>(null);
 
+  // 如果没有 selectedModel 或 models 为空，使用第一个模型或显示占位符
+  const currentModel = selectedModel || models[0];
+
   // 点击外部关闭
   useEffect(() => {
     function handleClickOutside(event: MouseEvent) {
@@ -27,6 +30,15 @@ export function ModelSelector({ models, selectedModel, onSelect }: ModelSelector
     return () => document.removeEventListener('mousedown', handleClickOutside);
   }, []);
 
+  // 如果没有任何模型数据，显示加载状态
+  if (!currentModel || models.length === 0) {
+    return (
+      <div className="flex items-center gap-1 px-2 py-1 text-sm font-medium text-[var(--color-text-tertiary)]">
+        <span>加载中...</span>
+      </div>
+    );
+  }
+
   return (
     <div className={cn('relative', isOpen && 'model-selector--open')} ref={dropdownRef}>
       {/* 触发按钮 */}
@@ -34,7 +46,7 @@ export function ModelSelector({ models, selectedModel, onSelect }: ModelSelector
         onClick={() => setIsOpen(!isOpen)}
         className="flex items-center gap-1 px-2 py-1 text-sm font-medium text-[var(--color-text-secondary)] rounded-lg hover:bg-[var(--color-bg-hover)] transition-colors"
       >
-        <span>{selectedModel.name}</span>
+        <span>{currentModel.name}</span>
         <ChevronDown
           size={16}
           className={cn('transition-transform duration-150', isOpen && 'rotate-180')}
@@ -52,7 +64,7 @@ export function ModelSelector({ models, selectedModel, onSelect }: ModelSelector
         )}
       >
         {models.map((model) => {
-          const isSelected = model.id === selectedModel.id;
+          const isSelected = model.id === currentModel.id;
           return (
             <button
               key={model.id}
@@ -68,7 +80,7 @@ export function ModelSelector({ models, selectedModel, onSelect }: ModelSelector
                   isSelected ? 'text-[var(--color-primary)]' : 'text-[var(--color-text-primary)]'
                 )}
               >
-                {model.name}
+                {model.displayName}
               </span>
               <span className="text-xs text-[var(--color-text-tertiary)]">{model.tag}</span>
             </button>

src/components/ui/ModelCardSelector.tsx

@@ -1,9 +1,11 @@
 'use client';
 
 import { cn } from '@/lib/utils';
+import { useState, useEffect } from 'react';
+import { AlertCircle } from 'lucide-react';
 
-// 模型卡片配置
-const MODEL_CARDS = [
+// Claude 模型卡片配置
+const CLAUDE_MODEL_CARDS = [
   {
     id: 'haiku',
     name: 'Haiku',
@@ -24,11 +26,36 @@ const MODEL_CARDS = [
   },
 ];
 
+// Codex 模型卡片配置
+const CODEX_MODEL_CARDS = [
+  {
+    id: 'gpt-5.1-codex',
+    name: 'Codex',
+    description: 'Standard',
+    modelIdPattern: 'gpt-5.1-codex',
+  },
+  {
+    id: 'gpt-5.1-codex-max',
+    name: 'Codex Max',
+    description: 'Enhanced',
+    modelIdPattern: 'gpt-5.1-codex-max',
+  },
+  {
+    id: 'gpt-5.2-codex',
+    name: 'Codex Pro',
+    description: 'Latest',
+    modelIdPattern: 'gpt-5.2-codex',
+  },
+];
+
+// 模型类型
+type ModelType = 'claude' | 'codex';
+
 interface ModelCardSelectorProps {
   value: string;
   onChange: (modelId: string) => void;
   disabled?: boolean;
-  models?: { modelId: string; displayName: string }[];
+  models?: { modelId: string; displayName: string; modelType?: string }[];
 }
 
 export function ModelCardSelector({
@@ -37,36 +64,111 @@ export function ModelCardSelector({
   disabled = false,
   models = [],
 }: ModelCardSelectorProps) {
-  // 根据当前选中的模型ID判断选中的卡片
-  const getSelectedCard = (modelId: string): string => {
+  // 当前选中的模型类型
+  const [showModelChangeHint, setShowModelChangeHint] = useState(false);
+  const [previousModelType, setPreviousModelType] = useState<ModelType | null>(null);
+
+  // 判断模型类型
+  const getModelType = (modelId: string): ModelType => {
+    if (modelId.startsWith('gpt-') && modelId.includes('codex')) {
+      return 'codex';
+    }
+    return 'claude';
+  };
+
+  // 根据当前选中的模型ID判断选中的卡片（Claude）
+  const getSelectedClaudeCard = (modelId: string): string | null => {
     const lowerModelId = modelId.toLowerCase();
     if (lowerModelId.includes('haiku')) return 'haiku';
     if (lowerModelId.includes('opus')) return 'opus';
-    return 'sonnet'; // 默认 sonnet
+    if (lowerModelId.includes('sonnet')) return 'sonnet';
+    return null;
   };
 
-  // 根据卡片类型找到对应的实际模型ID
-  const findModelIdByCard = (cardId: string): string => {
+  // 根据当前选中的模型ID判断选中的卡片（Codex）
+  const getSelectedCodexCard = (modelId: string): string | null => {
+    if (modelId === 'gpt-5.1-codex') return 'gpt-5.1-codex';
+    if (modelId === 'gpt-5.1-codex-max') return 'gpt-5.1-codex-max';
+    if (modelId === 'gpt-5.2-codex') return 'gpt-5.2-codex';
+    return null;
+  };
+
+  // 根据卡片类型找到对应的实际模型ID（Claude）
+  const findClaudeModelIdByCard = (cardId: string): string => {
     const model = models.find((m) =>
       m.modelId.toLowerCase().includes(cardId)
     );
     return model?.modelId || value;
   };
 
-  const selectedCard = getSelectedCard(value);
+  // 根据卡片类型找到对应的实际模型ID（Codex）
+  const findCodexModelIdByCard = (cardId: string): string => {
+    const model = models.find((m) => m.modelId === cardId);
+    return model?.modelId || cardId;
+  };
+
+  const currentModelType = getModelType(value);
+  const selectedClaudeCard = getSelectedClaudeCard(value);
+  const selectedCodexCard = getSelectedCodexCard(value);
+
+  // 处理模型选择
+  const handleModelSelect = (modelId: string, modelType: ModelType) => {
+    if (disabled) return;
+
+    const newModelType = modelType;
+
+    // 检测模型类型切换
+    if (previousModelType && previousModelType !== newModelType) {
+      setShowModelChangeHint(true);
+      setTimeout(() => setShowModelChangeHint(false), 5000);
+    }
+
+    setPreviousModelType(newModelType);
+    onChange(modelId);
+  };
+
+  // 初始化时设置 previousModelType
+  useEffect(() => {
+    if (value && !previousModelType) {
+      setPreviousModelType(getModelType(value));
+    }
+  }, [value, previousModelType]);
+
+  // 检查是否有 Codex 模型可用
+  const hasCodexModels = models.some(m => m.modelType === 'codex' || (m.modelId.startsWith('gpt-') && m.modelId.includes('codex')));
 
   return (
+    <div className="space-y-6">
+      {/* 模型切换提示 */}
+      {showModelChangeHint && (
+        <div className="flex items-start gap-2 p-3 rounded-lg bg-amber-50 dark:bg-amber-900/20 border border-amber-200 dark:border-amber-800 text-amber-800 dark:text-amber-200">
+          <AlertCircle size={18} className="mt-0.5 flex-shrink-0" />
+          <div className="text-sm">
+            <p className="font-medium">模型类型已切换</p>
+            <p className="text-amber-600 dark:text-amber-300 mt-1">
+              {currentModelType === 'codex'
+                ? 'Codex 模型不支持思考模式（Thinking），但支持工具调用。'
+                : 'Claude 模型支持思考模式和工具调用。'}
+            </p>
+          </div>
+        </div>
+      )}
+
+      {/* Claude 模型组 */}
+      <div>
+        <div className="text-xs font-medium text-[var(--color-text-tertiary)] mb-3 flex items-center gap-2">
+          <span className="w-2 h-2 rounded-full bg-[var(--color-primary)]"></span>
+          Claude 模型
+        </div>
         <div className="flex gap-3">
-      {MODEL_CARDS.map((card) => {
-        const isSelected = selectedCard === card.id;
+          {CLAUDE_MODEL_CARDS.map((card) => {
+            const isSelected = selectedClaudeCard === card.id;
             return (
               <button
                 key={card.id}
                 onClick={() => {
-              if (!disabled) {
-                const newModelId = findModelIdByCard(card.id);
-                onChange(newModelId);
-              }
+                  const newModelId = findClaudeModelIdByCard(card.id);
+                  handleModelSelect(newModelId, 'claude');
                 }}
                 disabled={disabled}
                 className={cn(
@@ -104,5 +206,71 @@ export function ModelCardSelector({
             );
           })}
         </div>
+      </div>
+
+      {/* Codex 模型组 */}
+      {hasCodexModels && (
+        <div>
+          <div className="text-xs font-medium text-[var(--color-text-tertiary)] mb-3 flex items-center gap-2">
+            <span className="w-2 h-2 rounded-full bg-emerald-500"></span>
+            Codex 模型
+            <span className="text-[10px] px-1.5 py-0.5 rounded bg-emerald-100 dark:bg-emerald-900/30 text-emerald-600 dark:text-emerald-400">
+              OpenAI
+            </span>
+          </div>
+          <div className="flex gap-3">
+            {CODEX_MODEL_CARDS.map((card) => {
+              const isSelected = selectedCodexCard === card.id;
+              // 检查该模型是否在可用模型列表中
+              const isAvailable = models.some(m => m.modelId === card.id);
+
+              if (!isAvailable) return null;
+
+              return (
+                <button
+                  key={card.id}
+                  onClick={() => {
+                    const newModelId = findCodexModelIdByCard(card.id);
+                    handleModelSelect(newModelId, 'codex');
+                  }}
+                  disabled={disabled}
+                  className={cn(
+                    'flex flex-col items-center justify-center',
+                    'w-[120px] h-[72px] rounded-md',
+                    'border-2 transition-all duration-200',
+                    'focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-emerald-500',
+                    isSelected
+                      ? 'bg-emerald-50 dark:bg-emerald-900/20 border-emerald-500'
+                      : 'bg-[var(--color-bg-tertiary)] border-transparent hover:border-emerald-300 dark:hover:border-emerald-700',
+                    disabled && 'opacity-50 cursor-not-allowed'
+                  )}
+                >
+                  <span
+                    className={cn(
+                      'text-sm font-semibold',
+                      isSelected
+                        ? 'text-emerald-600 dark:text-emerald-400'
+                        : 'text-[var(--color-text-primary)]'
+                    )}
+                  >
+                    {card.name}
+                  </span>
+                  <span
+                    className={cn(
+                      'text-xs mt-1',
+                      isSelected
+                        ? 'text-emerald-500 dark:text-emerald-400'
+                        : 'text-[var(--color-text-tertiary)]'
+                    )}
+                  >
+                    {card.description}
+                  </span>
+                </button>
+              );
+            })}
+          </div>
+        </div>
+      )}
+    </div>
   );
 }