fix(posthog): eliminate all remaining phantom empty-string workspace groups

Author: waleedlatif1

apps/sim/app/api/workflows/[id]/deploy/route.ts

@@ -102,7 +102,7 @@ export async function POST(request: NextRequest, { params }: { params: Promise<{
       'workflow_deployed',
       { workflow_id: id, workspace_id: workflowData!.workspaceId ?? '' },
       {
-        groups: { workspace: workflowData!.workspaceId ?? '' },
+        groups: workflowData!.workspaceId ? { workspace: workflowData!.workspaceId } : undefined,
         setOnce: { first_workflow_deployed_at: new Date().toISOString() },
       }
     )

apps/sim/app/api/workflows/[id]/deployments/[version]/revert/route.ts

@@ -113,7 +113,9 @@ export async function POST(
         workspace_id: workflowRecord?.workspaceId ?? '',
         version,
       },
-      { groups: { workspace: workflowRecord?.workspaceId ?? '' } }
+      workflowRecord?.workspaceId
+        ? { groups: { workspace: workflowRecord.workspaceId } }
+        : undefined
     )
 
     recordAudit({

apps/sim/app/api/workflows/[id]/route.ts

@@ -230,7 +230,7 @@ export async function DELETE(
       userId,
       'workflow_deleted',
       { workflow_id: workflowId, workspace_id: workflowData.workspaceId ?? '' },
-      { groups: { workspace: workflowData.workspaceId ?? '' } }
+      workflowData.workspaceId ? { groups: { workspace: workflowData.workspaceId } } : undefined
     )
 
     const elapsed = Date.now() - startTime