补充 host runtime boundary release gate 文档

PROJECT_COMPLETION_TRACKER.md

@@ -9,7 +9,7 @@ turn-by-turn continuation notes and next-batch execution records.
 ## Current Status
 
 - Active continuation file: `text14.txt`
-- Latest completed batch: sim-config coverage release-gate docs
+- Latest completed batch: host/runtime boundary release-gate docs
 - Latest relevant commit: use `git log -1 --oneline` after each committed batch
 - Working tree at tracker creation: clean
 - Required policy: LinuxCNC remains the only CNC semantic source
@@ -45,8 +45,8 @@ The project is complete for the current scope when all of the following are true
 | SDK/API surface | In progress | SDK re-exports core, OPFS/session, sim-config staging, and INI panel shell/workflow overview helpers with a Node surface smoke. |
 | Browser/UI workflow | In progress | Workflow overview embedding mount DOM closure is complete; current focus is SDK/docs/release gate consolidation. |
 | Workflow overview embedding | In progress | Report/display/render, DOM contract/readiness/renderer, mount result/display/render, mount DOM contract/readiness/renderer/wrapper exist. |
-| Host/runtime boundary proof | In progress | Host smoke passes; runtime families below remain blocked. |
-| Documentation/release gate | In progress | OPFS/session and sim-config release gates are documented and smoke-tested; final README/docs pass still pending. |
+| Host/runtime boundary proof | In progress | Host smoke passes; runtime families remain blocked and `docs/host-runtime-boundary-handoff.md` records host readiness, promotion blockers, dispatch, and evidence gates. |
+| Documentation/release gate | In progress | OPFS/session, sim-config, and host/runtime release gates are documented and smoke-tested; final README/docs pass still pending. |
 
 ## Blocked Runtime Families
 
@@ -74,7 +74,7 @@ Execute these in order unless a later user request explicitly changes priority.
 
 Current next task:
 
-- Consolidate host/runtime boundary reports and final release-gate documentation.
+- Refresh final README/docs acceptance checklist and project completion handoff.
 
 Then complete the closure:
 
@@ -161,14 +161,16 @@ Completion criteria:
 
 Work items:
 
-- Consolidate runtime family proof reports.
-- Keep missing host runtime as blocked.
+- Consolidate runtime family proof reports. Done via `docs/host-runtime-boundary-handoff.md`.
+- Keep missing host runtime as blocked. Done; current status remains `host_blocked_for_all_opt_in_native_probes`.
 - If real runtime becomes available, validate in native -> Node/WASM -> browser/host order.
+- Add docs smoke for host/runtime boundary handoff. Done via `tests/docs/node/verify_host_runtime_boundary_docs.sh`.
 
 Completion criteria:
 
 - `verify_host_smokes.sh` remains stable.
 - Boundaries are documented and machine-readable.
+- `host_runtime_boundary_docs_node_smoke=ok` is included in the host aggregate gate.
 
 ### 6. Documentation/Release Gate