Adds Docker setup and basic API endpoints

WHAT: Introduces Dockerfiles for development and production, Docker Compose configurations, a Makefile for common tasks, shell scripts for environment setup/teardown, a basic Express API with SQLite integration.
WHY: Enables easy setup and deployment of the application using Docker. Provides basic API endpoints for managing purchase items.
HOW:
- Creates `docker-compose.dev.yml` and `docker-compose.prod.yml` to define services and volumes.
- Introduces `Dockerfile.dev` and `Dockerfile.prod` to build container images with necessary dependencies.
- Adds `Makefile` with commands for building, running, and managing the application.
- Implements shell scripts for simplified Docker environment management.
- Sets up Express API with endpoints for CRUD operations on purchase items, using SQLite as the database.
- Uses `better-sqlite3` to connect and interact with the SQLite database.

Makefile

@@ -17,6 +17,8 @@ NODE_MODULES = node_modules
 # 包管理器自动检测（优先 pnpm，否者回退 npm）
 PKG = $(shell command -v pnpm >/dev/null 2>&1 && echo pnpm || echo npm)
 
+# Docker（平台由 scripts/dev-up.sh 自动探测，可通过环境变量 DOCKER_PLATFORM 覆盖）
+
 # 默认目标
 .PHONY: help
 help: ## 显示帮助信息
@@ -146,5 +148,31 @@ quick-build: lint build ## 快速构建（检查代码并构建）
 test-flow: clean-install lint build preview ## 完整测试流程
 	@echo "$(GREEN)完整测试流程完成!$(RESET)"
 
+# ----- Docker 开发/生产 -----
+.PHONY: dev-up
+dev-up: ## 启动开发环境 (自动探测平台；可通过 DOCKER_PLATFORM=linux/arm64 覆盖)
+	@echo "$(GREEN)启动开发环境 (Docker)$(RESET)"
+	bash scripts/dev-up.sh
+
+.PHONY: prod-build
+prod-build: build ## 构建生产镜像 (前端在宿主机构建)
+	@echo "$(GREEN)构建生产镜像 (linux/amd64)$(RESET)"
+	bash scripts/prod-build.sh
+
+.PHONY: prod-up
+prod-up: ## 启动生产环境 (使用生产镜像)
+	@echo "$(GREEN)启动生产环境 (linux/amd64)$(RESET)"
+	bash scripts/prod-up.sh
+
+.PHONY: dev-down
+dev-down: ## 停止开发环境 (保留数据卷)
+	@echo "$(YELLOW)停止开发环境 (Docker)$(RESET)"
+	bash scripts/dev-down.sh
+
+.PHONY: prod-down
+prod-down: ## 停止生产环境 (保留数据卷)
+	@echo "$(YELLOW)停止生产环境 (Docker)$(RESET)"
+	bash scripts/prod-down.sh
+
 # 设置默认目标
 .DEFAULT_GOAL := help

docker/Dockerfile.dev

@@ -0,0 +1,21 @@
+FROM node:20-bullseye-slim
+ENV npm_config_registry=https://registry.npmmirror.com
+ENV npm_config_build_from_source=true
+
+# Build prerequisites for native modules (better-sqlite3)
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends python3 make g++ \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Use host-built frontend; only run server here
+COPY server/package.json server/tsconfig.json ./server/
+COPY server/src ./server/src
+
+RUN cd server && npm install --build-from-source && npm run build
+
+EXPOSE 8080
+CMD ["node", "server/dist/index.js"]
+
+

docker/Dockerfile.prod

@@ -0,0 +1,26 @@
+FROM node:20-bullseye-slim
+ENV npm_config_registry=https://registry.npmmirror.com
+ENV npm_config_build_from_source=true
+
+# Build prerequisites for native modules (better-sqlite3)
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends python3 make g++ \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Install server deps in container (native modules match linux/amd64)
+COPY server/package.json ./server/package.json
+RUN cd server && npm install --omit=dev --build-from-source
+
+# Copy server runtime and prebuilt frontend from host
+COPY server/dist ./server/dist
+COPY dist ./frontend
+
+ENV PORT=8080
+ENV DB_PATH=/data/purchase.db
+
+EXPOSE 8080
+CMD ["node", "server/dist/index.js"]
+
+

docker/docker-compose.dev.yml

@@ -0,0 +1,20 @@
+services:
+  api:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.dev
+    image: dm-purchase-api:dev
+    platform: ${DOCKER_PLATFORM:-linux/amd64}
+    ports:
+      - "8080:8080"
+    environment:
+      - DB_PATH=/data/purchase.db
+    volumes:
+      - dm_db:/data
+      - ../dist:/app/frontend:ro
+    restart: unless-stopped
+
+volumes:
+  dm_db:
+
+

docker/docker-compose.prod.yml

@@ -0,0 +1,19 @@
+services:
+  api:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.prod
+    image: dm-purchase-api:prod
+    platform: linux/amd64
+    ports:
+      - "8080:8080"
+    environment:
+      - DB_PATH=/data/purchase.db
+    volumes:
+      - dm_db:/data
+    restart: unless-stopped
+
+volumes:
+  dm_db:
+
+

scripts/dev-down.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[Dream-Machine] 停止开发环境"
+
+SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
+ROOT_DIR=$(cd "$SCRIPT_DIR/.." && pwd)
+
+echo "[步骤] 停止 Docker Compose (开发) (保留数据卷)"
+(cd "$ROOT_DIR/docker" && docker compose -f docker-compose.dev.yml down)
+
+echo "[完成] 开发环境已停止。数据库卷 dm_db 已保留。"
+
+

scripts/dev-up.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[Dream-Machine] 开发环境启动"
+
+# 自动探测宿主机平台，允许环境变量覆盖
+HOST_OS=$(uname -s 2>/dev/null || echo unknown)
+HOST_ARCH=$(uname -m 2>/dev/null || echo unknown)
+
+# 如果用户误传了 darwin/arm64，统一转换为 linux/arm64（Docker 只支持 Linux 基础镜像）
+if [ "${DOCKER_PLATFORM:-}" = "darwin/arm64" ] || [ "${DOCKER_PLATFORM:-}" = "Darwin/arm64" ]; then
+  DOCKER_PLATFORM=linux/arm64
+fi
+
+if [ -z "${DOCKER_PLATFORM:-}" ]; then
+  case "${HOST_OS}-${HOST_ARCH}" in
+    Darwin-arm64)   DOCKER_PLATFORM=linux/arm64 ;;
+    Darwin-x86_64)  DOCKER_PLATFORM=linux/amd64 ;;
+    Linux-x86_64)   DOCKER_PLATFORM=linux/amd64 ;;
+    Linux-aarch64)  DOCKER_PLATFORM=linux/arm64 ;;
+    *)              DOCKER_PLATFORM=linux/amd64 ;;
+  esac
+fi
+
+echo "- 宿主机: ${HOST_OS}/${HOST_ARCH}"
+echo "- 容器镜像平台: ${DOCKER_PLATFORM} (Docker 仅支持 linux/*；可通过 DOCKER_PLATFORM 覆盖)"
+echo "- 将使用外部构建的前端 (dist/)"
+
+SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
+ROOT_DIR=$(cd "$SCRIPT_DIR/.." && pwd)
+
+if [ ! -d "$ROOT_DIR/dist" ]; then
+  echo "[提示] 未检测到 dist/，将进行前端构建 (pnpm build)"
+  (cd "$ROOT_DIR" && pnpm run build)
+fi
+
+echo "[步骤] 启动 Docker Compose (开发)"
+(cd "$ROOT_DIR/docker" && DOCKER_PLATFORM=${DOCKER_PLATFORM} docker compose -f docker-compose.dev.yml up -d --build)
+
+echo "[完成] API: http://localhost:8080"
+
+

scripts/prod-build.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[Dream-Machine] 生产镜像构建"
+echo "- 环境要求: 前端包 dist/ 已在宿主机构建完成"
+echo "- 目标平台: linux/amd64"
+
+SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
+ROOT_DIR=$(cd "$SCRIPT_DIR/.." && pwd)
+
+if [ ! -d "$ROOT_DIR/dist" ]; then
+  echo "[错误] 未检测到 dist/。请先在宿主机运行: pnpm run build"
+  exit 1
+fi
+
+echo "[步骤] 安装并构建后端 (宿主机)"
+(cd "$ROOT_DIR/server" && pnpm install && pnpm run build)
+
+echo "[步骤] 构建生产镜像 (仅打包、禁止在容器内构建)"
+(cd "$ROOT_DIR/docker" && docker buildx build --platform linux/amd64 -f Dockerfile.prod -t dm-purchase-api:prod ..)
+
+echo "[完成] 镜像: dm-purchase-api:prod"
+
+

scripts/prod-down.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[Dream-Machine] 停止生产环境"
+
+SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
+ROOT_DIR=$(cd "$SCRIPT_DIR/.." && pwd)
+
+echo "[步骤] 停止 Docker Compose (生产) (保留数据卷)"
+(cd "$ROOT_DIR/docker" && docker compose -f docker-compose.prod.yml down)
+
+echo "[完成] 生产环境已停止。数据库卷 dm_db 已保留。"
+
+

scripts/prod-up.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "[Dream-Machine] 生产环境启动"
+echo "- 目标平台: linux/amd64"
+echo "- 将使用宿主机构建的前端 (dist/)"
+
+SCRIPT_DIR=$(cd "$(dirname "$0")" && pwd)
+ROOT_DIR=$(cd "$SCRIPT_DIR/.." && pwd)
+
+if [ ! -d "$ROOT_DIR/dist" ]; then
+  echo "[错误] 未检测到 dist/。请先在宿主机运行: pnpm run build"
+  exit 1
+fi
+
+echo "[步骤] 启动 Docker Compose (生产)"
+(cd "$ROOT_DIR/docker" && docker compose -f docker-compose.prod.yml up -d --build)
+
+echo "[完成] API: http://localhost:8080"
+
+

server/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "dm-purchase-server",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "engines": {
+    "node": ">=18"
+  },
+  "scripts": {
+    "dev": "nodemon --watch src --exec ts-node src/index.ts",
+    "build": "tsc -b",
+    "start": "node dist/index.js",
+    "migrate": "ts-node src/migrate.ts"
+  },
+  "dependencies": {
+    "better-sqlite3": "^11.8.1",
+    "cors": "^2.8.5",
+    "express": "^4.21.2",
+    "zod": "^3.24.3"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/node": "^22.14.1",
+    "nodemon": "^3.1.9",
+    "ts-node": "^10.9.2",
+    "typescript": "~5.7.2"
+  },
+  "pnpm": {
+    "allowedScripts": {
+      "better-sqlite3": true
+    }
+  }
+}
+
+

server/src/index.ts

@@ -0,0 +1,195 @@
+import express from 'express';
+import cors from 'cors';
+import Database from 'better-sqlite3';
+import { z } from 'zod';
+import fs from 'node:fs';
+import path from 'node:path';
+
+const app = express();
+app.use(cors());
+app.use(express.json());
+
+const dbPath = process.env.DB_PATH || './data/purchase.db';
+const db = new Database(dbPath);
+
+// Ensure table exists
+db.exec(`CREATE TABLE IF NOT EXISTS purchase_items (
+  id TEXT PRIMARY KEY,
+  product_code TEXT,
+  product_name TEXT NOT NULL,
+  price REAL NOT NULL,
+  original_price TEXT NOT NULL,
+  original_currency TEXT NOT NULL CHECK(original_currency IN ('SGD','USD','RMB')),
+  importance TEXT NOT NULL CHECK(importance IN ('必须','必须的必','可买','不急')),
+  platform TEXT NOT NULL,
+  notes TEXT,
+  category TEXT NOT NULL,
+  site TEXT NOT NULL,
+  batch TEXT NOT NULL,
+  purchased INTEGER NOT NULL,
+  weight REAL NOT NULL,
+  purchase_link TEXT
+)`);
+
+const StoreItemSchema = z.object({
+  id: z.string(),
+  productCode: z.string(),
+  productName: z.string(),
+  price: z.number(),
+  originalPrice: z.string(),
+  originalCurrency: z.enum(['SGD','USD','RMB']),
+  importance: z.enum(['必须','必须的必','可买','不急']),
+  platform: z.string(),
+  notes: z.string(),
+  category: z.string(),
+  site: z.string(),
+  batch: z.string(),
+  purchased: z.boolean(),
+  weight: z.number(),
+  purchaseLink: z.string().optional()
+});
+
+app.get('/health', (_req, res) => {
+  res.json({ ok: true });
+});
+
+type DbRow = {
+  id: string;
+  product_code: string | null;
+  product_name: string;
+  price: number;
+  original_price: string;
+  original_currency: 'SGD'|'USD'|'RMB';
+  category: string;
+  importance: string;
+  platform: string;
+  notes: string | null;
+  site: string;
+  batch: string;
+  purchased: number; // 0/1
+  weight: number;
+  purchase_link: string | null;
+};
+
+app.get('/api/items', (_req, res) => {
+  const rows = db.prepare('SELECT * FROM purchase_items ORDER BY rowid DESC').all() as DbRow[];
+  const items = rows.map((r: DbRow) => ({
+    id: r.id,
+    productCode: r.product_code ?? '',
+    productName: r.product_name,
+    price: r.price,
+    originalPrice: r.original_price,
+    originalCurrency: r.original_currency,
+    importance: r.importance as '必须'|'必须的必'|'可买'|'不急',
+    platform: r.platform,
+    notes: r.notes ?? '',
+    category: r.category,
+    site: r.site,
+    batch: r.batch,
+    purchased: !!r.purchased,
+    weight: r.weight,
+    purchaseLink: r.purchase_link ?? ''
+  }));
+  res.json(items);
+});
+
+app.post('/api/items', (req, res) => {
+  const parse = StoreItemSchema.safeParse(req.body);
+  if (!parse.success) {
+    return res.status(400).json({ error: parse.error.message });
+  }
+  const i = parse.data;
+  db.prepare(`INSERT INTO purchase_items (
+    id,product_code,product_name,price,original_price,original_currency,importance,platform,notes,category,site,batch,purchased,weight,purchase_link
+  ) VALUES (@id,@product_code,@product_name,@price,@original_price,@original_currency,@importance,@platform,@notes,@category,@site,@batch,@purchased,@weight,@purchase_link)`) 
+    .run({
+      id: i.id,
+      product_code: i.productCode,
+      product_name: i.productName,
+      price: i.price,
+      original_price: i.originalPrice,
+      original_currency: i.originalCurrency,
+      importance: i.importance,
+      platform: i.platform,
+      notes: i.notes ?? '',
+      category: i.category,
+      site: i.site,
+      batch: i.batch,
+      purchased: i.purchased ? 1 : 0,
+      weight: i.weight,
+      purchase_link: i.purchaseLink ?? ''
+    });
+  res.status(201).json({ ok: true });
+});
+
+app.put('/api/items/:id', (req, res) => {
+  const parse = StoreItemSchema.safeParse({ ...req.body, id: req.params.id });
+  if (!parse.success) {
+    return res.status(400).json({ error: parse.error.message });
+  }
+  const i = parse.data;
+  const changes = db.prepare(`UPDATE purchase_items SET
+    product_code=@product_code,
+    product_name=@product_name,
+    price=@price,
+    original_price=@original_price,
+    original_currency=@original_currency,
+    importance=@importance,
+    platform=@platform,
+    notes=@notes,
+    category=@category,
+    site=@site,
+    batch=@batch,
+    purchased=@purchased,
+    weight=@weight,
+    purchase_link=@purchase_link
+    WHERE id=@id`).run({
+      id: i.id,
+      product_code: i.productCode,
+      product_name: i.productName,
+      price: i.price,
+      original_price: i.originalPrice,
+      original_currency: i.originalCurrency,
+      importance: i.importance,
+      platform: i.platform,
+      notes: i.notes ?? '',
+      category: i.category,
+      site: i.site,
+      batch: i.batch,
+      purchased: i.purchased ? 1 : 0,
+      weight: i.weight,
+      purchase_link: i.purchaseLink ?? ''
+    });
+  if (changes.changes === 0) return res.status(404).json({ error: 'Not found' });
+  res.json({ ok: true });
+});
+
+app.delete('/api/items/:id', (req, res) => {
+  const info = db.prepare('DELETE FROM purchase_items WHERE id = ?').run(req.params.id);
+  if (info.changes === 0) return res.status(404).json({ error: 'Not found' });
+  res.json({ ok: true });
+});
+
+// Quick toggle purchased
+app.patch('/api/items/:id/purchased', (req, res) => {
+  const purchased = !!req.body?.purchased;
+  const info = db.prepare('UPDATE purchase_items SET purchased = ? WHERE id = ?').run(purchased ? 1 : 0, req.params.id);
+  if (info.changes === 0) return res.status(404).json({ error: 'Not found' });
+  res.json({ ok: true });
+});
+
+const port = Number(process.env.PORT || 8080);
+// Serve prebuilt frontend when present (production)
+const frontendDir = path.resolve(process.cwd(), 'frontend');
+if (fs.existsSync(frontendDir)) {
+  app.use(express.static(frontendDir));
+  app.get('*', (_req, res) => {
+    res.sendFile(path.join(frontendDir, 'index.html'));
+  });
+}
+
+app.listen(port, () => {
+  console.log(`[server] listening on http://0.0.0.0:${port}`);
+});
+
+

server/src/migrate.ts

@@ -0,0 +1,23 @@
+import Database from 'better-sqlite3';
+
+const dbPath = process.env.DB_PATH || './data/purchase.db';
+const db = new Database(dbPath);
+
+db.exec(`CREATE TABLE IF NOT EXISTS purchase_items (
+  id TEXT PRIMARY KEY,
+  item_name TEXT NOT NULL,
+  item_link TEXT,
+  category TEXT NOT NULL,
+  importance TEXT NOT NULL,
+  price REAL NOT NULL,
+  site TEXT NOT NULL,
+  batch TEXT,
+  status TEXT NOT NULL CHECK(status IN ('pending','purchased','cancelled')),
+  notes TEXT,
+  created_at TEXT NOT NULL,
+  updated_at TEXT
+)`);
+
+console.log('Migration complete. DB at', dbPath);
+
+

server/src/types.d.ts

@@ -0,0 +1,3 @@
+declare module 'better-sqlite3';
+
+

server/tsconfig.json

@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "ES2022",
+    "moduleResolution": "Bundler",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "skipLibCheck": true,
+    "outDir": "dist",
+    "resolveJsonModule": true,
+    "strict": true
+  },
+  "include": ["src"]
+}
+
+

src/lib/api.ts

@@ -0,0 +1,43 @@
+import type { PurchaseItem as StoreItem } from '@/store/purchase-store';
+
+const API_BASE = import.meta.env.VITE_API_BASE || '';
+
+export async function fetchItems(): Promise<StoreItem[]> {
+  const res = await fetch(`${API_BASE}/api/items`);
+  if (!res.ok) throw new Error('Failed to fetch items');
+  return res.json();
+}
+
+export async function createItem(item: StoreItem): Promise<void> {
+  const res = await fetch(`${API_BASE}/api/items`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(item),
+  });
+  if (!res.ok) throw new Error('Failed to create item');
+}
+
+export async function updateItem(item: StoreItem): Promise<void> {
+  const res = await fetch(`${API_BASE}/api/items/${encodeURIComponent(item.id)}`, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(item),
+  });
+  if (!res.ok) throw new Error('Failed to update item');
+}
+
+export async function deleteItemById(id: string): Promise<void> {
+  const res = await fetch(`${API_BASE}/api/items/${encodeURIComponent(id)}`, { method: 'DELETE' });
+  if (!res.ok) throw new Error('Failed to delete item');
+}
+
+export async function togglePurchased(id: string, purchased: boolean): Promise<void> {
+  const res = await fetch(`${API_BASE}/api/items/${encodeURIComponent(id)}/purchased`, {
+    method: 'PATCH',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ purchased }),
+  });
+  if (!res.ok) throw new Error('Failed to toggle purchased');
+}
+
+

src/pages/HomePage.tsx

@@ -8,7 +8,7 @@ import { useEffect, useState } from "react";
 import { DogMotivation } from "@/features/purchase/components/DogMotivation";
 
 function HomePage() {
-  const { items, totalBudget, getPurchasedTotal, getRemainingTotal } = usePurchaseStore();
+  const { items, totalBudget, getPurchasedTotal, getRemainingTotal, hydrateFromServer } = usePurchaseStore();
   const [currentDate, setCurrentDate] = useState("");
   
   const purchasedTotal = getPurchasedTotal();
@@ -29,6 +29,11 @@ function HomePage() {
     setCurrentDate(formattedDate);
   }, []);
 
+  useEffect(() => {
+    // hydrate from backend once
+    hydrateFromServer();
+  }, [hydrateFromServer]);
+
   const handlePrint = () => {
     window.print();
   };

src/store/purchase-store.ts

@@ -1,5 +1,6 @@
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
+import * as api from '@/lib/api';
 
 export type PurchaseItem = {
   id: string;
@@ -30,10 +31,11 @@ type PurchaseStore = {
   setTotalBudget: (budget: number) => void;
   setExchangeRates: (rates: { SGD?: number; USD?: number }) => void;
   recalculatePrices: () => void;
-  addItem: (item: PurchaseItem) => void;
-  updateItem: (item: PurchaseItem) => void;
-  deleteItem: (id: string) => void;
-  togglePurchased: (id: string) => void;
+  hydrateFromServer: () => Promise<void>;
+  addItem: (item: PurchaseItem) => Promise<void>;
+  updateItem: (item: PurchaseItem) => Promise<void>;
+  deleteItem: (id: string) => Promise<void>;
+  togglePurchased: (id: string) => Promise<void>;
 
   // Calculations
   getPurchasedTotal: () => number;
@@ -224,21 +226,57 @@ export const usePurchaseStore = create<PurchaseStore>()(
           })
         });
       },
-      addItem: (item) => set((state) => ({ items: [...state.items, item] })),
-      updateItem: (item) =>
-        set((state) => ({
-          items: state.items.map((i) => (i.id === item.id ? item : i)),
-        })),
-      deleteItem: (id) =>
-        set((state) => ({
-          items: state.items.filter((item) => item.id !== id),
-        })),
-      togglePurchased: (id) =>
-        set((state) => ({
-          items: state.items.map((item) =>
-            item.id === id ? { ...item, purchased: !item.purchased } : item
-          ),
-        })),
+      hydrateFromServer: async () => {
+        try {
+          const serverItems = await api.fetchItems();
+          set({ items: serverItems });
+        } catch (e) {
+          console.warn('hydrateFromServer failed, using local data');
+        }
+      },
+      addItem: async (item) => {
+        set((state) => ({ items: [...state.items, item] }));
+        try {
+          await api.createItem(item);
+        } catch (e) {
+          // rollback
+          set((state) => ({ items: state.items.filter((i) => i.id !== item.id) }));
+          throw e;
+        }
+      },
+      updateItem: async (item) => {
+        const prev = get().items;
+        set({ items: prev.map((i) => (i.id === item.id ? item : i)) });
+        try {
+          await api.updateItem(item);
+        } catch (e) {
+          set({ items: prev });
+          throw e;
+        }
+      },
+      deleteItem: async (id) => {
+        const prev = get().items;
+        set({ items: prev.filter((i) => i.id !== id) });
+        try {
+          await api.deleteItemById(id);
+        } catch (e) {
+          set({ items: prev });
+          throw e;
+        }
+      },
+      togglePurchased: async (id) => {
+        const prev = get().items;
+        const next = prev.map((i) => (i.id === id ? { ...i, purchased: !i.purchased } : i));
+        set({ items: next });
+        try {
+          const item = next.find((i) => i.id === id)!;
+          await api.togglePurchased(id, item.purchased);
+        } catch (e) {
+          set({ items: prev });
+          throw e;
+        }
+      },
+
       getPurchasedTotal: () =>
         get().items.reduce(
           (sum, item) => sum + (item.purchased ? item.price : 0),

vite.config.ts

@@ -10,4 +10,16 @@ export default defineConfig({
       "@": path.resolve(__dirname, "./src"),
     },
   },
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:8080',
+        changeOrigin: true,
+      },
+      '/health': {
+        target: 'http://localhost:8080',
+        changeOrigin: true,
+      }
+    }
+  }
 })