chore: add license (GNU General Public License v3)

[DeepSpace2]

Added the GNU General Public License version 3 to the project.

Summary by CodeRabbit

• Documentation
  • Added a project license file with the full GNU General Public License v3 text.

[coderabbitai]

📝 Walkthrough

Walkthrough

Added a new LICENSE file containing the full text of the GNU General Public License, Version 3, including the preamble, sections 0–17, and instructions for applying it to new programs.

Changes

LICENSE Addition

Layer / File(s)	Summary
Add GPLv3 license text LICENSE	Introduces the complete GNU General Public License, Version 3 text as a new file.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the addition of the GPLv3 license file.

Warning

Review ran into problems

🔥 Problems

Git: Failed to clone repository. Please run the @coderabbitai full review command to re-trigger a full review. If the issue persists, set path_filters to include or exclude specific files.

---

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.}