docs: add MIT license

[RafaelPulzi]

Closes #9

Summary

Adds an MIT license to the repository.

What changed

• added a root LICENSE file

Summary by CodeRabbit

• Chores
  • Added MIT License to the project with full license text and copyright notice.

[coderabbitai]

Walkthrough

A MIT License file was added to the repository root, establishing open-source terms for the OpenLake project. The license grants permissions to use, modify, and distribute the software while including copyright attribution and liability disclaimers.

Changes

Cohort / File(s)	Summary
License Declaration LICENSE	Added MIT License text with 2026 OpenLake copyright, permissions for usage/modification/distribution, and liability disclaimers.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A license is planted, with words fair and true,
MIT's gentle spirit—now all code shines through!
OpenLake blooms bright in the open-source sun,
Where sharing and building make projects more fun. 🌱

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Linked Issues check	⚠️ Warning	The PR partially fulfills issue #9 requirements. It successfully creates a LICENSE file with MIT license text at repository root, but omits adding license badge to README.md and source file headers.	Add a license badge to README.md and consider adding license headers to source files to fully address issue #9 objectives.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately and concisely describes the main change: adding an MIT license file to the repository.
Out of Scope Changes check	✅ Passed	All changes are directly related to the objective of adding a LICENSE file. No out-of-scope modifications detected.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@LICENSE`:
- Line 1: The PR added the LICENSE file but did not add the README license badge
requested in issue `#9`; update README.md to include a license badge (e.g., a
shields.io MIT badge) near the project title, or if you prefer to defer, add a
short note to the PR description referencing issue `#9` and stating that the
README badge will be added in a follow-up PR; look for the README.md and LICENSE
entries to place the badge or to mention the deferment.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 9631d296-c875-4466-9dc4-aabebcd225bb

📥 Commits

Reviewing files that changed from the base of the PR and between 1ff3858 and 283c936.

📒 Files selected for processing (1)

• LICENSE