[dev] [tofikwest] fix/device-agent-duplicate-serial-registration

[github-actions]

This is an automated pull request to merge fix/device-agent-duplicate-serial-registration into dev.
It was created by the [Auto Pull Request] action.

[cursor]

PR Summary

Medium Risk
Changes device registration behavior to create/update records instead of rejecting when a serial number collides across members, which can impact identity/uniqueness semantics and may increase device record duplication if the heuristic is wrong.

Overview
Resolves duplicate/generic device serial collisions during agent registration: when a serial is already claimed by another member in the same org, the API now creates/updates a per-user device using a generated fallback:<originalSerial>:<uuid> serial (keyed by hostname + member) instead of returning a 409.

Updates the device details UI to hide these fallback values and display "Generic serial number" for any serial starting with fallback:.

^{Written by Cursor Bugbot for commit ea51af8. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
portal	Ready	Preview, Comment	Mar 1, 2026 9:51pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
app	Skipped		Mar 1, 2026 9:51pm

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}