test 3

dsh-qa QA Workbench: a local software testing workbench plugin for DeepSeek Harness. Project/iteration dual-mode, full-flow requirements / test cases / defects / milestones / reports, native QA preset, themes, kanban and calendar.

测试覆盖率分析：解析 LCOV / Cobertura / Istanbul-JSON / Go cover.out 覆盖率报告，产出结构化覆盖率数据与未覆盖行区间，指导补写测试

A minimal DeepSeek Harness deployment plugin: registers a `test` smoke-test tool to verify plugin installation. 部署级冒烟测试插件，注册 test 工具。