新增 release artifact URL workflow SDK API

wasm-port/runtime/sdk/README.md

@@ -74,6 +74,7 @@ import {
   isSupportedIniPanelLaunchApiManifest,
   isSupportedIniPanelShellIntegrationManifest,
   loadIniPanelShellWorkflowOverviewReleaseReadinessArtifactUrl,
+  loadProjectReleaseReadinessArtifactUrlWorkflow,
   loadMachineSessionFromOpfs,
   loadMachineSessionSnapshot,
   loadMachineTextFiles,
@@ -243,6 +244,10 @@ one-call wrapper for dashboards that receive artifact JSON text. It parses,
 validates, builds the validation summary, and builds the action plan. Invalid
 JSON returns a blocked workflow with `parsed: false` and the same next-command
 action plan instead of throwing.
+`loadProjectReleaseReadinessArtifactUrlWorkflow()` is the SDK-side URL workflow
+for callers that supply a `fetch` implementation. It fetches the artifact URL,
+runs the JSON workflow, and returns fetch status, validation, summary, and
+action-plan output without executing release gates.
 
 ## OPFS/session persistence exports