公开登录/注册邮箱验证码比较改为 SHA-256 后恒定时间 Compare，堵住未授权口的计时侧信道。metric 持平 8。

Result: {"status":"keep","total_issues":8,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":8,"eslint_problems":0,"eslint_errors":0,"eslint_warnings":0,"tsc_errors":0,"measure_s":81,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_usetesting":0,"golint_test_total":0,"golint_exhaustive":0,"golint_vetx_total":0,"vitest_failed":0,"vitest_total":126}

.auto/log.jsonl

@@ -29,3 +29,4 @@
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 {"run":29,"commit":"511bed8","metric":8,"metrics":{"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":8,"eslint_problems":0,"eslint_errors":0,"eslint_warnings":0,"tsc_errors":0,"measure_s":63,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_usetesting":0,"golint_test_total":0,"golint_exhaustive":0,"golint_vetx_total":0,"vitest_failed":0,"vitest_total":124},"status":"keep","description":"修复 2 个新增 unconvert 问题（linux.go 中 int64(stat.Bsize) 恒等转换，Statfs_t.Bsize 在 Linux 上本就是 int64），删除多余转换零行为变化；total 10→8 回到 5 维全下限。","timestamp":1786894372432,"segment":0,"confidence":null,"asi":{"category":"unconvert","hypothesis":"会话恢复后 measure 显示 total=10，出现 2 个新的 unconvert 问题（internal/apps/edge/observability/linux.go:261-262 的 int64(stat.Bsize) 恒等转换，Linux Statfs_t.Bsize 本就是 int64）。删除多余转换，零行为变化","finding":"unconvert 是 repo 自带配置启用的 linter，此前 baseline 无此问题，最近用户提交/Go 版本变化后新增；修复后 5 维回到全下限 8","next_action_hint":"会话恢复点确认：total=8（5 维全下限，8 项均为有据可查的刻意保留）。下一轮候选：静态检查新维度（staticcheck SA 系列在 repo 配置中已启用且为 0）、或把 docs/ 下 vitepress 站点的构建纳入 measure 防回归（docs build 不属质量计数，不进基准）"}}
 {"run":30,"commit":"d49c7e1","metric":8,"metrics":{"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":8,"eslint_problems":0,"eslint_errors":0,"eslint_warnings":0,"tsc_errors":0,"measure_s":183,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_usetesting":0,"golint_test_total":0,"golint_exhaustive":0,"golint_vetx_total":0,"vitest_failed":0,"vitest_total":126},"status":"checks_failed","description":"Agent 发现 Token 比较改为 SHA-256 后恒定时间 Compare，堵住未授权节点注册口的计时侧信道。checks 在 -race 阶段超时（包本身已单独跑绿）。","timestamp":1787667218065,"segment":0,"confidence":null,"asi":{"hypothesis":"discovery token 用 != 比较，未授权 /agent/nodes/register 可被计时；改 SHA-256 + ConstantTimeCompare","rollback_reason":"checks.sh 在 go test -race 阶段 300s 超时（包单独跑全绿，预算不够）","next_action_hint":"同一修复用 checks_timeout_seconds=600 重跑"}}
+{"run":31,"commit":"69055a9","metric":8,"metrics":{"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_usestdlibvars":0,"golint_wastedassign":0,"golint_total":8,"eslint_problems":0,"eslint_errors":0,"eslint_warnings":0,"tsc_errors":0,"measure_s":71,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_usetesting":0,"golint_test_total":0,"golint_exhaustive":0,"golint_vetx_total":0,"vitest_failed":0,"vitest_total":126},"status":"keep","description":"未授权 Agent 注册口的 discovery token 改为 SHA-256 后恒定时间比较，堵住计时侧信道；空 token / 末字节翻转用例同步补上。metric 持平 8。","timestamp":1787667401636,"segment":0,"confidence":null,"asi":{"hypothesis":"discovery token 用 != 比较，未授权 /agent/nodes/register 可被计时；改 SHA-256 + ConstantTimeCompare","finding":"公开面注册口 ValidateDiscoveryToken 是入侵入口；管理员已登录操作不在范围内。checks 全绿。","next_action_hint":"下一轮可查边缘 Token 比较（agent/relay/flared 走 DB 查找，计时面更弱）或登录口限流"}}