refactor: 移除java项目，改用hono + vercel function实现后端 (#1)

Co-authored-by: gin <gin-18@qq.com>
Co-authored-by: gin <dengxinmin@owlscm.com>
Reviewed-on: #1

.dockerignore

@@ -0,0 +1,24 @@
+node_modules
+**/node_modules
+.pnpm-store
+
+.git
+.gitignore
+.DS_Store
+*.local
+*.log
+
+backend/.vercel
+backend/node_modules
+
+frontend/app/dist
+frontend/app/deploy_versions
+frontend/app/.temp
+frontend/app/.rn_temp
+frontend/app/.swc
+
+frontend/web/dist
+frontend/web/dist-ssr
+frontend/web/report.html
+frontend/web/.eslintcache
+frontend/web/tests/**/coverage