chore: 清理旧测试基础设施并添加新测试框架

- 清理废弃的 CI/CD 工作流文件与 dogfood 输出
- 添加 vitest 测试环境配置（mocks、setup 文件）
- 添加算法、服务、页面、工具类的单元测试
- 更新 vitest 配置、依赖与文档

everything-is-suitable-uniapp/nginx.conf

@@ -14,17 +14,6 @@ server {
         add_header Cache-Control "no-cache, no-store, must-revalidate";
     }
 
-    location /api {
-        proxy_pass http://api:8080;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_connect_timeout 60s;
-        proxy_send_timeout 60s;
-        proxy_read_timeout 60s;
-    }
-
     location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
         expires 1y;
         add_header Cache-Control "public, immutable";