Error handling and UX

[OussHammami]

Goal

Standardize user-visible errors and actionable messages in UI.

Context

Consistent error handling improves user experience by reducing confusion and enabling recovery from transient failures.

Definition of Done

• Builds and tests pass
• Logs/metrics if relevant
• Minimal docs/changelog if user-visible

Plan

• Implement standardized snackbar/messages for errors
• Add retry logic for transient failures
• Define empty states for dashboards
• Test error scenarios in UI

Notes

Document error codes and messaging patterns.