Document repeated host acceptance failures

docs/PRODUCTION_CLOSURE_BOARD.md

@@ -35,7 +35,7 @@
 | Integration | ✅ PASS | `go test ./tests/integration/... -count=1` |
 | Static Analysis | ✅ PASS | `go vet ./...` |
 | Formatting | ✅ PASS | `gofmt -l .` 空输出 |
-| Core Coverage | ✅ PASS | `go test -cover ./internal/...`；access 80.5%, host/sub2api 78.1%, pack 73.9%, provision 76.3%（sqlite 61.4% 仅作信息项） |
+| Core Coverage | ✅ PASS | `go test -cover ./internal/...`；access 84.8%, host/sub2api 78.5%, pack 73.9%, provision 79.4%（sqlite 77.9% 仅作信息项） |
 | 控制面 API 计划缺口 | ✅ CLOSED | 已补 `/api/hosts/{hostID}/probe`、`/api/providers/{providerID}/import-batches`、`/api/import-batches/{batchID}/rollback` |
 | 状态一致性 | ✅ CLOSED | rollback-by-batch 回写 `rolled_back/failed`；assign-subscriptions 同步 `import_batches.access_status` |
 | provider 消歧 | ✅ CLOSED | pack 维度精确解析，避免同名 provider 跨 pack 误命中 |
@@ -78,6 +78,11 @@
    - patched fresh-host rerun 已证明“当前 completion-gated 语义已在 fresh host 上生效”
    - 当前 `subscription` 与 `self_service` 主链路都已在真实 fresh-host 上验收通过，达到 PRD 首版放行要求
 
+6. 2026-05-23 追加质量收口
+   - `internal/app`、`internal/provision`、`internal/reconcile`、`internal/store/sqlite` 的热点回归分支已继续补测
+   - 最新覆盖率已提升到：`internal/provision=79.4%`、`internal/store/sqlite=77.9%`
+   - Kimi A7M capability 误判、stale CRM 进程/`host_base_url` 串台、`models-only ready` 假阳性，这三类反复出错点的最终根因与排查顺序已写入 `docs/REAL_HOST_ACCEPTANCE_LEARNINGS.md`
+
 ## 剩余项（P2 / 运营前置，不阻塞按 PRD 首版范围上线）
 
 ### 运营前置