plugins: Support scoped/namespace package names in headlamp-plugin

[PrakharJain345]

Summary

Support scoped/namespace npm package names (e.g., @my-org/my-plugin) in the headlamp-plugin CLI build/start lifecycles and the frontend plugin manager by mapping them to flat, safe, collision-free local directory names.

Related Issue

Fixes #5714

Changes

• plugins/headlamp-plugin/bin/headlamp-plugin.js: Update copyToPluginsFolder to translate scoped package names by stripping the @ prefix and replacing slashes with hyphens (e.g., @my-org/my-plugin maps to my-org-my-plugin).
• frontend/src/components/App/PluginSettings/usePluginDelete.ts: Update the fallback directory-resolving logic to use the same flat, namespace-preserving pattern.

Steps to Test

1. Create a scoped plugin or rename an existing development plugin's package name in its package.json to @test-org/my-test-plugin.
2. Run npm run start inside the plugin directory.
3. Verify that the plugin assets are cleanly copied to ~/.config/Headlamp/plugins/test-org-my-test-plugin/ and load correctly in Headlamp.
4. Verify you can successfully delete/uninstall the plugin from the plugin settings UI in Headlamp.

Local Validation Results

All code linters, formatters, and compilers pass cleanly:

• TypeScript Compiler Check: npm run frontend:tsc (Completed successfully with code 0)
• Linter & Code Formatter: npm run frontend:lint:fix (All files formatted and linted cleanly with code 0)
• Frontend Test Suite: npm run frontend:test (Core tests pass cleanly)

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: PrakharJain345
Once this PR has been reviewed and has the lgtm label, please assign illume for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[Copilot]

Pull request overview

Adds support for scoped npm package names (e.g. @org/plugin) in the headlamp-plugin CLI build/start lifecycle and in the frontend plugin delete flow by mapping them to a flat, collision-free local directory name (@org/plugin → org-plugin), replacing the previous logic that dropped the scope and risked collisions.

Changes:

• Update copyToPluginsFolder in headlamp-plugin.js to strip @ and replace / with - instead of keeping only the last segment.
• Update the folderName fallback in usePluginDelete.ts to use the same scope-preserving transformation.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 1 comment.

File	Description
plugins/headlamp-plugin/bin/headlamp-plugin.js	Maps scoped package names to a flat directory name when copying built plugin assets.
frontend/src/components/App/PluginSettings/usePluginDelete.ts	Applies the same flat-name mapping in the delete-path fallback when folderName is absent.

[illume]

Thanks for this PR.

The open review comments from Copilot still need attention — can you have a look? Once addressed, please mark them as resolved.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 4 changed files in this pull request and generated no new comments.

[PrakharJain345]

Hi @illume,

I wanted to let you know that all feedback on this PR has been fully addressed!

The branch has been rebased on top of main to remove any merge commits, ensuring a clean and linear history. All automated checks, tests, and formatting checks are also passing cleanly.

This is fully ready for your final review whenever you have a moment. Thanks again for your valuable time and feedback on this!