feat: 新增AI模型配置功能，优化前端组件与代码规范

1. 新增Redis AI_MODEL_CONFIG枚举与后端AI模型配置CRUD接口
2. 升级vue-img-cutter到3.1.1版本，更新前端依赖
3. 重构前端多处ElMessage提示逻辑，统一由拦截器处理
4. 替换ElDrawer为FaDrawer组件，统一弹窗组件库
5. 重构文章详情、评论组件，新增租户切换器与AI配置面板
6. 优化代码生成模板、菜单树表格逻辑与代码高亮样式
7. 修复前端路由与组件命名问题，更新快速入口配置

frontend/web/src/api/module_ai/chat.ts

@@ -56,8 +56,64 @@ export const AiChatAPI = {
       method: "get",
     });
   },
+
+  // ============ AI 模型配置 ============ //
+  getModelConfig() {
+    return request<ApiResponse<AiModelConfigList>>({
+      url: `${API_PATH}/model`,
+      method: "get",
+    });
+  },
+
+  createModelConfig(body: AiModelConfigInput) {
+    return request<ApiResponse<AiModelConfigItem>>({
+      url: `${API_PATH}/model`,
+      method: "post",
+      data: body,
+    });
+  },
+
+  updateModelConfig(id: string, body: AiModelConfigInput) {
+    return request<ApiResponse<AiModelConfigItem>>({
+      url: `${API_PATH}/model/${id}`,
+      method: "put",
+      data: body,
+    });
+  },
+
+  deleteModelConfig(id: string) {
+    return request<ApiResponse<null>>({
+      url: `${API_PATH}/model/${id}`,
+      method: "delete",
+    });
+  },
+
+  activateModelConfig(id: string) {
+    return request<ApiResponse<null>>({
+      url: `${API_PATH}/model/${id || "__default__"}/activate`,
+      method: "post",
+    });
+  },
 };
 
+export interface AiModelConfigInput {
+  name: string;
+  base_url: string;
+  api_key: string;
+  model_id: string;
+  temperature: number;
+}
+
+export interface AiModelConfigItem extends AiModelConfigInput {
+  id: string;
+  created_time: string | null;
+}
+
+export interface AiModelConfigList {
+  items: AiModelConfigItem[];
+  active_id: string | null;
+}
+
 export default AiChatAPI;
 
 export interface ChatSessionMessage {