Add Postbox message authoring and concurrency

webui/src/features/postbox/PostboxAdminPanel.tsx

@@ -236,9 +236,13 @@ export default function PostboxAdminPanel({
     setSuccess("");
     try {
       if (templateDraft.templateId) {
+        const currentTemplate = templates.find(
+          (item) => item.id === templateDraft.templateId
+        );
+        if (!currentTemplate) throw new Error("The template is no longer available.");
         await revisePostboxTemplate(
           settings,
-          templateDraft.templateId,
+          currentTemplate,
           revisionPayload(templateDraft)
         );
         setSuccess("A new immutable template revision was created.");
@@ -268,7 +272,7 @@ export default function PostboxAdminPanel({
     try {
       await publishPostboxTemplate(
         settings,
-        selectedTemplate.id,
+        selectedTemplate,
         selectedTemplate.current_revision
       );
       setSuccess(`Published revision ${selectedTemplate.current_revision}.`);
@@ -286,7 +290,7 @@ export default function PostboxAdminPanel({
     setError("");
     setSuccess("");
     try {
-      await retirePostboxTemplate(settings, selectedTemplate.id);
+      await retirePostboxTemplate(settings, selectedTemplate);
       setSuccess("Postbox template retired. Existing addresses remain durable.");
       await load();
     } catch (actionError) {
@@ -365,7 +369,7 @@ export default function PostboxAdminPanel({
     setError("");
     setSuccess("");
     try {
-      await archivePostbox(settings, archiveTarget.id);
+      await archivePostbox(settings, archiveTarget);
       setSuccess("Postbox archived. Messages and delivery evidence were retained.");
       setArchiveTarget(null);
       await load();