refactor(machineImages): replace distro name guessing with exact vendor lookup

[grolu]

How to categorize this PR?
/area quality
/kind cleanup

What this PR does / why we need it:

Removes getDistroFromImageName which used substring matching to map
machine image names to vendor identifiers. This caused bugs where
images like memoryone-gardenlinux were silently mapped to the
gardenlinux vendor due to greedy includes() checks.

Machine image names are now looked up directly by exact name in the
vendor config. Adds missing vendor entries for gardenlinux-fips and
memoryone-gardenlinux. Unknown images fall back to displaying their
raw name instead of being silently misclassified.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

The old getDistroFromImageName also matched vsmp — this only
appears as a machineType name, never as a machineImage name, so it
was dead code.

Release note:

Fix machine image vendor matching to use exact names instead of substring matching, preventing misclassification of images like memorone-gardenlinux or gardenlinux-fips

Machine image vendor matching no longer uses substring/wildcard patterns. Image names must now exactly match an entry in `knownMachineImageVendors` (or the branding config `vendors.machineImage` array). Images without an exact match will display their raw name without vendor icon or grouping

Summary by CodeRabbit

Release Notes

• New Features

  • Added support for two new machine image vendors: Garden Linux (FIPS) and MemoryOne Garden Linux.

• Refactor

  • Simplified internal machine image vendor detection logic for improved maintainability.

[coderabbitai]

📝 Walkthrough

Walkthrough

Machine image vendor resolution is refactored from a two-step indirect lookup (derive distro from image name, then find vendor) to direct vendor lookup. Two new vendor entries are added to the config, the resolution logic is simplified, and the now-unused distro-derivation helper is removed.

Changes

Machine image vendor resolution refactoring

Layer / File(s)	Summary
Add new vendor entries frontend/src/store/config.js	gardenlinux-fips and memoryone-gardenlinux vendors are registered in knownMachineImageVendors with display names, weights, and icons.
Refactor vendor resolution logic frontend/src/composables/useCloudProfile/useMachineImages.js	Machine image flattening calls configStore.vendorDetails(machineImage.name) directly instead of deriving a distro first and then looking up the vendor.
Remove obsolete distro helper frontend/src/composables/helper.js	The getDistroFromImageName function and its lodash/lowerCase import are deleted since vendor resolution no longer requires distro derivation.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 A helper took a detour long,
Through distros dark and names so wrong,
But now we leap direct and true,
To vendors new—gardenlinux grew! 🌱

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: replacing substring-based distro guessing with exact vendor name lookups.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The pull request description is comprehensive and follows the template structure with all key sections completed.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bug/fix-image-vendor-matching

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[petersutter]

/lgtm
/approve

[gardener-prow]

LGTM label has been added.

Details

Git tree hash: 3a4354bc0adc78e62e32fb600c4a7b89d7143851

[gardener-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: petersutter

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

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [petersutter]

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

[grolu]

/cherry-pick hotfix-1.84

[gardener-ci-robot]

@grolu: new pull request created: #3001

Details

In response to this:

/cherry-pick hotfix-1.84

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.