Fix buildz.ai workspace loading error

[vdimarco]

Summary

This PR addresses two issues: a 500 error when loading /api/workspaces and a WebSocket connection failure on buildz.ai/workspace.

The /api/workspaces GET endpoint now includes defensive error handling, returning an empty list of workspaces on failure instead of a server error, allowing the page to load gracefully. Additionally, the Socket.IO client will now only attempt to connect in production environments if NEXT_PUBLIC_SOCKET_URL is explicitly configured. This prevents WebSocket connection errors when a socket server is not intended to be active or is misconfigured.

Fixes #(issue)

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• Other: ___________

Testing

The changes were validated locally. The /api/workspaces endpoint was tested to ensure it returns an empty array on error and the correct data otherwise. The Socket.IO initialization logic was verified to correctly skip connection when NEXT_PUBLIC_SOCKET_URL is not set in a production environment. Linters and existing tests were run to ensure no regressions.

Reviewers should focus on:

1. The error handling in apps/sim/app/api/workspaces/route.ts to ensure graceful degradation.
2. The conditional Socket.IO initialization in apps/sim/contexts/socket-context.tsx to confirm it correctly prevents connections when NEXT_PUBLIC_SOCKET_URL is absent in production.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos

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✨ Finishing touches

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