feat: 支持食物库接口

types/food.ts

@@ -0,0 +1,90 @@
+// 食物库相关类型定义
+
+// 后端 API 响应类型
+export interface FoodItemDto {
+  id: number;
+  name: string;
+  description?: string;
+  caloriesPer100g?: number;
+  proteinPer100g?: number;
+  carbohydratePer100g?: number;
+  fatPer100g?: number;
+  fiberPer100g?: number;
+  sugarPer100g?: number;
+  sodiumPer100g?: number;
+  additionalNutrition?: Record<string, any>;
+  isCommon: boolean;
+  imageUrl?: string;
+  sortOrder?: number;
+}
+
+export interface FoodCategoryDto {
+  key: string;
+  name: string;
+  icon?: string;
+  sortOrder?: number;
+  isSystem: boolean;
+  foods: FoodItemDto[];
+}
+
+export interface FoodLibraryResponseDto {
+  categories: FoodCategoryDto[];
+}
+
+// 前端使用的类型（兼容现有代码）
+export interface FoodItem {
+  id: string;
+  name: string;
+  emoji?: string;
+  calories: number;
+  unit: string;
+  description?: string;
+  protein?: number;
+  carbohydrate?: number;
+  fat?: number;
+  fiber?: number;
+  sugar?: number;
+  sodium?: number;
+  additionalNutrition?: Record<string, any>;
+  imageUrl?: string;
+}
+
+export interface FoodCategory {
+  id: string;
+  name: string;
+  foods: FoodItem[];
+  icon?: string;
+  sortOrder?: number;
+  isSystem?: boolean;
+}
+
+// 已选择的食物项目
+export interface SelectedFoodItem {
+  id: string;
+  food: FoodItem;
+  amount: number;
+  unit: string;
+  calories: number;
+}
+
+// 餐次类型
+export type MealType = 'breakfast' | 'lunch' | 'dinner' | 'snack';
+
+// 食物库状态
+export interface FoodLibraryState {
+  categories: FoodCategory[];
+  loading: boolean;
+  error: string | null;
+  searchResults: FoodItem[];
+  searchLoading: boolean;
+  lastUpdated: number | null;
+}
+
+// API 请求参数
+export interface SearchFoodsParams {
+  keyword: string;
+}
+
+export interface GetFoodByIdParams {
+  id: number;
+}