docs: add Fulcrum copyright to root LICENSE and COPYING

[nh13]

prmi is a fork of learnedsystems/RMI (Ryan Marcus, MIT-licensed), substantially extended by Fulcrum Genomics with the genomic suffix-array trainer, frozen on-disk sidecar format, runtime reader, and C FFI.

Fulcrum's copyright was already asserted at the per-file header level and documented in LICENSE-FORK-NOTICE.md. This adds a matching Copyright (c) 2026 Fulcrum Genomics LLC line to the root LICENSE and COPYING files, alongside Marcus's original notice, so the top-level license also reflects Fulcrum's authorship of the new work.

Marcus's 2019 notice is retained (MIT requires the original copyright notice be included in derivatives). The fork notice is updated to describe the added line so it stays consistent with the root files.

LICENSE / COPYING

Copyright (c) 2019 Ryan Marcus
Copyright (c) 2026 Fulcrum Genomics LLC

Summary by CodeRabbit

• Documentation
  • Updated repository license notices to reflect current copyright attribution.
  • Added a fork notice entry acknowledging Fulcrum Genomics LLC while keeping the MIT terms unchanged.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 46913d2a-c2a0-48b0-9f78-fe5c79c0c99e

📥 Commits

Reviewing files that changed from the base of the PR and between c87da8d and 6264927.

📒 Files selected for processing (3)

• COPYING
• LICENSE
• LICENSE-FORK-NOTICE.md

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Walkthrough

Copyright attribution lines were updated in COPYING and LICENSE from "2019 Ryan Marcus" to "2026 Fulcrum Genomics LLC". LICENSE-FORK-NOTICE.md was updated to add a Fulcrum Genomics copyright line alongside the existing fork notice text.

Changes

License copyright attribution update

Layer / File(s)	Summary
Copyright line updates COPYING, LICENSE, LICENSE-FORK-NOTICE.md	Copyright attribution changed to "Copyright (c) 2026 Fulcrum Genomics LLC" in COPYING and LICENSE; LICENSE-FORK-NOTICE.md text updated to add the same attribution for new work.

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

Risk: No fix needed — verify the year/entity string is byte-identical across all three files (COPYING, LICENSE, LICENSE-FORK-NOTICE.md); mismatched attribution text between them is the only realistic defect here.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	Accurately describes the main change to the root license files.
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 docs/fulcrum-copyright

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[nh13]

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