switch license headers

[liopeer]

What has changed and why?

• fixing 2 license headers, which actually should be Lightly

Did you update CHANGELOG.md?

• Yes
• Not needed (internal change)

Did you update the documentation?

• Yes
• Not needed (internal change without effects for user)

[chatgpt-codex-connector]

Codex usage limits have been reached for code reviews. Please check with the admins of this repo to increase the limits by adding credits.
Credits must be used to enable repository wide code reviews.

[liopeer]

/review

[Copilot]

Pull request overview

This PR corrects license headers for two LT-DETR helper modules so they use the Lightly (repository) license header instead of the Apache 2.0 header, and updates the make add-header automation accordingly.

Changes:

• Replaced the Apache 2.0 header with the Lightly header in two LT-DETR component files.
• Updated Makefile’s add-header target to exclude those LT-DETR files from the RT-DETR Apache-header pass.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/lightly_train/_task_models/object_detection_components/ltdetr_schedule.py	Switches file header to the Lightly license header.
src/lightly_train/_task_models/object_detection_components/ltdetr_geometry.py	Switches file header to the Lightly license header.
Makefile	Adjusts add-header to exclude the LT-DETR files from the RT-DETR header application.

[simonschoelly]

I think copilot might be right here - we have this -x src/lightly_train/_task_models/object_detection_components for the default license header.

If there is no simple way to do this and you just added the license manually, then I think we can keep it as it is for now.

[liopeer]

I don't think there is a really "nice" way to do it, i.e. somehow make Lightly's license header the default that applies everywhere, where no exclusion rule exists. I now manually added them to the command that sets Lightly's license header.

[liopeer]

/review