chore(experiments): allow noncommercial use and contributions

[yordis]

• The previous UNLICENSED notice legally blocked anyone from running, modifying, or contributing to experiments, contradicting the goal of letting people test ideas and send PRs.
• PolyForm Noncommercial 1.0.0 keeps commercial rights reserved to Straw Hat, LLC while allowing everyone else to experiment freely.
• An explicit Apache 2.0 contribution grant is needed so contributed code can legally graduate into the Apache-licensed parts of the repository.

[cursor]

PR Summary

Low Risk
Documentation and legal text only; no runtime, build, or production code paths change.

Overview
Replaces the experiments default from proprietary UNLICENSED to PolyForm Noncommercial 1.0.0, so cloning, running, and modifying under experiments/ is explicitly allowed for noncommercial use while commercial rights stay with Straw Hat, LLC.

Updates experiments/README.md to explain that licensing is deferred until graduation, that permissive relicensing remains possible later, and how to request commercial use. Adds a Contributions section requiring PRs to this directory to be licensed to Straw Hat, LLC under Apache 2.0 with permission to relicense—so contributed work can move into the Apache-licensed main repo when experiments graduate.

^{Reviewed by Cursor Bugbot for commit 599236c. Bugbot is set up for automated code reviews on this repo. Configure here.}

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: d79999d2-3a8b-43c9-bda3-30382433a003

📥 Commits

Reviewing files that changed from the base of the PR and between b0e6ad4 and 599236c.

📒 Files selected for processing (1)

• experiments/README.md

Walkthrough

The experiments/LICENSE file was replaced with the full PolyForm Noncommercial License 1.0.0 text, removing the prior UNLICENSED/proprietary notice. The README.md was updated to reference this new default license and adds a Contributions section describing contributor licensing terms.

Changes

Experiments Licensing Update

Layer / File(s)	Summary
LICENSE text replacement experiments/LICENSE	Removed the UNLICENSED proprietary notice and replaced it with the complete PolyForm Noncommercial License 1.0.0 text.
README licensing and contribution terms experiments/README.md	Updated the default license reference from UNLICENSED to PolyForm Noncommercial License 1.0.0 and added a Contributions section covering Apache License 2.0 grant terms and relicense/redistribution rights.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• TrogonStack/trogonai#278: Both PRs modify the same experiments/LICENSE and experiments/README.md files to change the default license terms for that directory.

Poem

A license once locked, now open in kind,
PolyForm words in the README I find.
Contributions flow in, Apache-bright,
Straw Hat can share them, redistribute the light.
🐇 Hop hop, this rabbit approves the write!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the licensing change for experiments and the added contribution allowance.
Description check	✅ Passed	The description directly explains the licensing and contribution-grant changes in the experiments area.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch yordis/experiments-license-check

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