feat: 初始化居家上门服务系统完整项目代码

- Spring Boot 后端服务 (hss-home-service)
- delivery-miniapp 配送小程序
- website 官网 (Nuxt)
- docs 架构设计文档
- Docker 容器化部署配置

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

hss-home-service/Dockerfile

@@ -0,0 +1,18 @@
+FROM maven:3.9-eclipse-temurin-17 AS builder
+WORKDIR /build
+COPY settings.xml /root/.m2/settings.xml
+COPY pom.xml .
+RUN mvn dependency:go-offline -B -q || true
+COPY src/ src/
+RUN mvn package -DskipTests -B -q
+
+FROM eclipse-temurin:17-jre
+WORKDIR /app
+COPY --from=builder /build/target/*.jar app.jar
+
+RUN addgroup --system hss && adduser --system --ingroup hss hss
+USER hss
+
+EXPOSE 8080
+
+ENTRYPOINT ["java", "-XX:+UseZGC", "-XX:MaxRAMPercentage=75", "-jar", "app.jar"]