fix: Make Dockerfile tolerant of missing package-lock.json

The initial project has no node_modules or package-lock.json yet.
Use wildcard COPY for lock file and fallback to `npm install`
when lock file doesn't exist. Once lock file is generated and
committed, it will automatically use the faster `npm ci`.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/admin-web/Dockerfile

@@ -3,11 +3,12 @@ FROM node:20-alpine AS deps
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 
-# 复制依赖文件
-COPY package.json package-lock.json ./
+# 复制依赖文件 (lock文件可选，首次构建会自动生成)
+COPY package.json ./
+COPY package-lock.json* ./
 
-# 安装依赖
-RUN npm ci --only=production=false
+# 安装依赖 (有lock文件用ci，没有则用install)
+RUN if [ -f package-lock.json ]; then npm ci; else npm install; fi
 
 # 阶段2: 构建
 FROM node:20-alpine AS builder