feat: explain external work hand-offs

webui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@govoplan/workflow-webui",
-  "version": "0.1.19",
+  "version": "0.1.20",
   "private": true,
   "type": "module",
   "main": "src/index.ts",

webui/src/features/workflow/WorkflowRunsDialog.tsx

@@ -285,6 +285,13 @@ export default function WorkflowRunsDialog({
   const actionUrl = typeof currentStep?.handoff.action_url === "string"
     ? currentStep.handoff.action_url
     : "";
+  const unavailableOptionalCapabilities = Array.isArray(
+    currentStep?.handoff.unavailable_optional_capabilities
+  )
+    ? currentStep.handoff.unavailable_optional_capabilities.filter(
+        (value): value is string => typeof value === "string" && Boolean(value)
+      )
+    : [];
   const close = () => {
     dispatchWorkflowViewChanged(null);
     onClose();
@@ -390,6 +397,15 @@ export default function WorkflowRunsDialog({
                       {selected.error}
                     </DismissibleAlert>
                   ) : null}
+                  {selected.view_context && !viewsRuntime ? (
+                    <DismissibleAlert
+                      tone="warning"
+                      resetKey={`view-unavailable:${selected.id}:${selected.current_step_id ?? "none"}`}
+                    >
+                      The focused View is unavailable. Workflow position is preserved;
+                      use the linked module action or ask an administrator to enable Views.
+                    </DismissibleAlert>
+                  ) : null}
                   {currentStep ? (
                     <section className="workflow-run-handoff">
                       <div>
@@ -417,9 +433,18 @@ export default function WorkflowRunsDialog({
                         && currentStep.handoff.instructions ? (
                           <p>{currentStep.handoff.instructions}</p>
                         ) : null}
+                      {unavailableOptionalCapabilities.length ? (
+                        <DismissibleAlert
+                          tone="info"
+                          resetKey={`optional:${currentStep.id}:${unavailableOptionalCapabilities.join(",")}`}
+                        >
+                          Optional integration unavailable: {unavailableOptionalCapabilities.join(", ")}.
+                          The hand-off remains valid and resumable.
+                        </DismissibleAlert>
+                      ) : null}
                       {actionUrl ? (
                         <a href={actionUrl}>
-                          Open linked Dataflow result <ExternalLink size={14} />
+                          Open linked work <ExternalLink size={14} />
                         </a>
                       ) : null}
                       {allowedActions.some((action) => action !== "cancel") ? (