docs(test): archive matrix deep-test promote report and release slot

Record Wave 1–4 evidence, fix FEATURE-MATRIX schema-47 note, harden
promote-to-test against origin rebase, and mark infra task done.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/git-workflow-helper.sh

@@ -99,9 +99,9 @@ case "${COMMAND}" in
             echo "错误: 请提供测试候选 Tag 名称，例如: $0 promote-to-test rc-v1.0.0-beta.1"
             exit 1
         fi
-        echo "==> 切换至 test 分支并合并 dev 当前稳定节点..."
+        echo "==> 切换至 test 分支并合并本地 dev 当前稳定节点..."
         git checkout test
-        git pull --rebase origin test 2>/dev/null || true
+        # 本地晋升默认不 rebase origin（分叉时会把数百提交重放并易冲突）。需要同步远端时请显式 pull --ff-only/merge。
         git merge --no-ff dev -m "release-candidate: 汇集 dev 功能至 test 分支，准备长期实测 [Tag: ${TAG}]"
         git tag -a "${TAG}" -m "实测候选版本: ${TAG}"
         echo "已成功合并至 test 并打上标签: ${TAG}！请启动 test 环境进行运维与功能测试。"