Adopt AGPLv3 and retain earlier driver license grants

[frahlg]

This version of the driver project uses AGPLv3 with the narrow Energyplan permission. NOTICE preserves the exact earlier Apache text and identifies the Apache-licensed source snapshot. The catalog and contribution guide reflect the new terms.

The rolling channel uploads source-revision-named license notices alongside immutable driver artifacts. Existing driver bytes and prior grants remain unchanged; this does not rewrite the Core recovery snapshot or claim new hardware evidence. Merging the workflow change will run the existing channel workflow, so coordinate the transition with Core.

Validation: make check passed (4,404 tests passed, 1,069 skipped); make site and local browser review passed. No signed channel was published by this task.

Contribution guidance welcomes external PRs and requires new contributions to carry AGPL-3.0-only with the Energyplan permission. DCO sign-off grants no copyright assignment or commercial relicensing rights. NOTICE preserves the Apache-licensed default-branch snapshot at 91f49bd869300e4985979823971787d9cc6eb883, including its exact prior license and any prior notice.

This is part of the FTW license transition: AGPL-3.0-only for the open code, with a narrow section 7 permission for the proprietary Energyplan workers. Energyplan Home Use terms apply only to new workers; AGPL commercial use remains permitted. Prior Apache, MIT and Energyplan grants remain available, and third-party terms remain intact.

Automated legal review checked license scope, retained notices, source offers, the Energyplan boundary, commercial installer use and source packaging. It is not a human legal opinion and does not establish copyright assignments or app-store compatibility. Commercial rights can be offered only for software and rights Sourceful controls.

Paired PRs:

• FTW
• energyplan
• ftw-webapp
• ftw-app
• ftw-web

---

Note

High Risk
License and distribution changes affect all downstream use, compliance, and signed channel artifacts; workflow uploads run on merge to main.

Overview
This PR relicenses the project from Apache-2.0 to GNU AGPL v3 only, with the FTW Energyplan combination permission appended in LICENSE. It adds NOTICE (transition date, Apache snapshot at 91f49bd…, full prior Apache text) and LICENSING.md (redistribution, Energyplan boundary, source-offer guidance).

Contributor and public-facing docs now state AGPL + DCO terms without implying copyright assignment or commercial relicensing (CONTRIBUTING.md, README.md). The generated catalog site labels AGPL-3.0-only in the hero and footer (tools/generate_site.py).

The FTW driver release workflow copies LICENSE, NOTICE, LICENSING.md, and THIRD_PARTY_NOTICES.md into commit-suffixed .txt assets and uploads them with driver artifacts so rolling-channel releases keep immutable license text per source revision, while older release assets keep their earlier terms.

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[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-12T13:41:41.405208Z	a1e435a	Draft marked ready

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