chore(licence): normalise to MPL-2.0 (code) + CC-BY-SA-4.0 (docs)

[hyperpolymath]

• LICENSES/ = {MPL-2.0.txt, CC-BY-SA-4.0.txt}; root LICENSE = verbatim MPL-2.0 (GitHub display)
• SPDX: code -> MPL-2.0, docs (.md/.adoc) -> CC-BY-SA-4.0; metadata/badge fixes; vendored untouched

Description

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement

Related Issues

Checklist

• My code follows the project's language policy (ReScript, Deno, no TypeScript/npm)
• I have added SPDX headers to new files
• I have updated the documentation accordingly
• I have added tests that prove my fix is effective or my feature works
• New and existing unit tests pass locally
• I have run deno fmt and deno lint on my changes

Ecological & Economic Considerations

• This change improves code efficiency
• This change has been reviewed for energy patterns
• This change maintains or improves the project's sustainability

Screenshots (if applicable)

Additional Notes

[gitar-bot]

Note

Automatic reviews are paused because your trial's included automatic processing has been used for this period. Upgrade now, or comment "Gitar review" to run a review anytime.
Learn more

Code Review ✅ Approved

Normalises repository licensing to MPL-2.0 for code and CC-BY-SA-4.0 for documentation with corresponding SPDX headers and root license file. No issues found.

Auto-approved and auto-merge armed: No blocking issues found.
Please see Auto-approve Docs for details on setting custom approval criteria. — merges when pipeline and required approvals pass.

Options

Display: compact → Showing less information.

Comment with these commands to change the behavior for this request:

Compact

gitar display:verbose

_{Was this helpful? React with 👍 / 👎 | Gitar}

[gitar-bot]

⚠️ Gitar auto-approved this PR but could not enable auto-merge: auto-merge is disabled for this repository — enable "Allow auto-merge" in the repository settings.

[gitar-bot]

Gitar has auto-approved this PR and enabled auto-merge (configure)