fix(envvars): restore workflowUserId fallback for scheduled execution env var resolution

Author: waleedlatif1

apps/sim/lib/workflows/executor/execution-core.ts

@@ -325,7 +325,10 @@ export async function executeWorkflowCore(
 
     const mergedStates = mergeSubblockStateWithValues(blocks)
 
-    const personalEnvUserId = metadata.sessionUserId || metadata.userId
+    const personalEnvUserId =
+      metadata.isClientSession && metadata.sessionUserId
+        ? metadata.sessionUserId
+        : metadata.workflowUserId || metadata.userId
 
     if (!personalEnvUserId) {
       throw new Error('Missing execution actor for environment resolution')