fix(analytics): correct format field logic and add missing useCallback deps

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/home/home.tsx

@@ -240,7 +240,7 @@ export function Home({ chatId }: HomeProps = {}) {
 
       sendMessage(trimmed || 'Analyze the attached file(s).', fileAttachments, contexts)
     },
-    [sendMessage]
+    [sendMessage, workspaceId, chatId]
   )
 
   useEffect(() => {

apps/sim/app/workspace/[workspaceId]/w/hooks/use-import-workflow.ts

@@ -212,7 +212,7 @@ export function useImportWorkflow({ workspaceId }: UseImportWorkflowProps) {
           captureEvent(posthogRef.current, 'workflow_imported', {
             workspace_id: workspaceId,
             workflow_count: importedWorkflowIds.length,
-            format: hasZip ? 'zip' : 'json',
+            format: hasZip && fileArray.length === 1 ? 'zip' : 'json',
           })
           router.push(
             `/workspace/${workspaceId}/w/${importedWorkflowIds[importedWorkflowIds.length - 1]}`