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>

.gitignore

@@ -1,12 +1,18 @@
 # Dependencies
-node_modules/
+**/node_modules/
 
 # Claude / AI agent files
 .claude/
 
-# AI-generated planning docs
+# AI-generated planning docs & prompts
 IMPLEMENTATION_PLAN.md
 居家上门服务系统_可执行实现方案_补齐可开工版.md
+hss-home-service/官网设计方案Prompt.txt
+
+# Build output
+**/.output/
+**/target/
+**/test-results/
 
 # IDE
 .idea/