新增 project release gate wrapper

wasm-port/README.md

@@ -9,7 +9,13 @@ handoff. It links the browser/UI workflow surface, SDK surface,
 OPFS/session persistence scope, sim-config coverage baseline, blocked
 host/runtime families, source reuse rules, drift rules, and acceptance tracker.
 
-The minimum release validation commands for the current scope are:
+The project release gate for the current scope is:
+
+```bash
+wasm-port/tests/host/verify_project_release_gate.sh
+```
+
+It executes these minimum release validation commands:
 
 ```bash
 git diff --check
@@ -31,6 +37,7 @@ sim_configs_coverage_docs_node_smoke=ok
 host_runtime_boundary_docs_node_smoke=ok
 sdk_surface_node_smoke=ok
 host_wasm_opfs_browser_smokes=ok
+project_release_gate=ok
 ```
 
 Browser/UI entry points are documented in `docs/panel-entry.md`. Stable SDK