feat(api): delete workspace groups and record who signed a content event

web/src/core-bridge/generated/api.ts

@@ -1,5 +1,5 @@
 // Generated from backend DTOs; do not edit.
-// backend-contract-sha256: 655e918f3443073c270bdeb9ae4e69d79dacf83baa90dea1a0cdcfe71d2b8bd5
+// backend-contract-sha256: 22853abd6c1bf74053682018cd214fecb34c664e4abe043a15c1595566419350
 
 export interface AccountChannelBody {
   channel_id: string;
@@ -338,6 +338,7 @@ export interface SignedContentEventRecord {
   kind: string;
   manifestHash: string;
   signature: string;
+  signerAccount?: string | null;
   signerDeviceId: string;
   signerDevicePublicKey: string;
   signerRootPublicKey: string;