PR #10833 aims to
fix: show file extensions in workflow sidebar## Summary - Workflow sidebar now displays file extensions (.json, .app.json) instead of stripping them - Uses `node.key` to derive leaf labels, bypassing PrimeVue Tree's label mutation - Removes unused `getFilenameDetails` import
Test focus: Verify that file names in the Workflows sidebar now include their full extensions (e.g., '.json').
Prerequisites: Ensure at least one saved workflow exists in the workspace (e.g., 'my-workflow.json')
Steps: Click the Workflows tab to open the sidebar → Wait for the workflow tree to render → Take a screenshot of the Workflows sidebar