test : add unit tests for plugin_health_dashboard helpers

[tmdeveloper007]

Summary of What Needs to be Done:
Add unit tests for the helper functions in scripts/plugin_health_dashboard.py: safe_relative_path and discover_plugins. These functions handle safe path resolution and plugin directory traversal for the health dashboard.

Changes that Need to be Made:

• New file: testing/backend/unit/test_plugin_health_dashboard.py
• Test safe_relative_path (returns relative path, rejects traversal attempts)
• Test discover_plugins (finds all plugin directories under plugins/)

Impact that it would Provide:

• Prevents path traversal vulnerabilities in the dashboard script
• Ensures plugin discovery handles empty directories and edge cases
• Improves dashboard reliability

Note: This task is being handled by tmdeveloper007 — please assign to that account when picking it up.

[utksh1]

Hey @kumbharkajal, this issue matches your skills. Would you like to take it on? Comment below and I'll assign it to you once you accept the collaborator invite.

[kumbharkajal]

Hi @utksh1, yes, I’d be happy to take this issue. I’ll accept the collaborator invite and work on the unit tests as described.

Could you please assign this issue to me under GSSoC ’26?
Thank you!

[kumbharkajal]

Hi @utksh1,

I've completed the work for this issue and opened a PR with the requested unit tests.
PR: #2031
I'd appreciate it if you could review it. Thank you!