feat: add post-export action setting (keep/archive/trash)

components/email/email-viewer.tsx

@@ -3094,7 +3094,11 @@ export function EmailViewer({
       await client.downloadBlob(email.blobId, emailExportFilename(email, emailFilenameOptions), 'message/rfc822');
     } catch {
       toast.error(tNotifications('export_email_error'));
+      return;
     }
+    const action = useSettingsStore.getState().postExportAction;
+    if (action === 'archive') onArchive?.();
+    else if (action === 'trash') onDelete?.();
   };
 
   // Import email from .eml file or .zip archive containing .eml files

components/settings/downloads-settings.tsx

@@ -138,6 +138,7 @@ export function DownloadsSettings() {
     filenameLowercase,
     filenameStripDiacritics,
     filenameCollapseSeparators,
+    postExportAction,
     updateSetting,
   } = useSettingsStore();
 
@@ -249,6 +250,17 @@ export function DownloadsSettings() {
           onChange={(checked) => updateSetting("filenameCollapseSeparators", checked)}
         />
       </SettingItem>
+      <SettingItem label={t("after_export.label")} description={t("after_export.description")}>
+        <Select
+          value={postExportAction}
+          onChange={(value) => updateSetting("postExportAction", value as "keep" | "archive" | "trash")}
+          options={[
+            { value: "keep", label: t("after_export.keep") },
+            { value: "archive", label: t("after_export.archive") },
+            { value: "trash", label: t("after_export.trash") },
+          ]}
+        />
+      </SettingItem>
     </SettingsSection>
   );
 }