feat(campaign): expose governed archive action

webui/src/api/campaigns.ts

@@ -1002,6 +1002,15 @@ payload: CampaignUpdatePayload)
   });
 }
 
+export async function archiveCampaign(
+settings: ApiSettings,
+campaignId: string)
+: Promise<CampaignListItem> {
+  return apiFetch<CampaignListItem>(settings, `/api/v1/campaigns/${campaignId}/archive`, {
+    method: "POST"
+  });
+}
+
 export async function createNewCampaign(
 settings: ApiSettings,
 overrides: CampaignCreateMinimalPayload = {})