feat(webui): add campaign metric drill-downs

webui/src/features/campaigns/components/CampaignDraftPageScaffold.tsx

@@ -24,6 +24,7 @@ type CampaignDraftPageScaffoldProps = {
   children: ReactNode;
 };
 
+// semantic-editor-guard: delegated to each caller's useCampaignDraftEditor lifecycle.
 export default function CampaignDraftPageScaffold({
   settings,
   campaignId,
@@ -53,8 +54,7 @@ export default function CampaignDraftPageScaffold({
       error={error || ""}
       actions={<PageActionBar
         variant="editor"
-        dirty={dirty}
-        saving={loading}
+        state={loading ? "saving" : dirty ? "dirty" : "clean"}
         discardAction={{ label: "i18n:govoplan-campaign.discard.36fff63c", onClick: onReload }}
         saveAction={{ label: "i18n:govoplan-campaign.save.efc007a3", onClick: onSave, disabled: (locked || !draft) && dirty, disabledReason: locked && dirty ? "This campaign version is locked." : !draft && dirty ? "The campaign draft is not available." : undefined }}
       />}