task: relicense to Apache-2.0 with dual attribution#27
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Relicense Retriever from AGPL-3.0-or-later to Apache-2.0, the practice-wide single open-source license. The contributor check is clean (only Chris Krough plus the semantic-release bot), so Backchain LLC holds copyright on all code and the flip is unilateral and valid. - LICENSE: canonical Apache-2.0 text - NOTICE: Copyright (C) 2025 Backchain LLC, links backchain.ai - CITATION.cff: author identity Chris Krough (@ckrough) - backend/pyproject.toml: SPDX Apache-2.0, authors/maintainers Chris Krough, project URLs (Homepage/Repository/Documentation) - README: Apache-2.0 license section, About/Built-by block naming both brands, indexable H1 + keyword first paragraph, reciprocal backlinks - CONTRIBUTING: License of Contributions under Apache-2.0, contributors retain copyright, no CLA/DCO - Apache SPDX header on all 63 backend/src Python files - docs/decisions/019: ADR recording the Apache-2.0 decision - Drop stale frontend references (frontend lives in stacker) Attribution is dual by design: legal/copyright to Backchain LLC, author identity to Chris Krough. Supersedes the two-license split in professional repo-licensing.md (rule update tracked in prof-qy8r). Issue: prof-i63d (relicense Retriever to Apache-2.0)
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Relicenses Retriever from AGPL-3.0-or-later to Apache-2.0, the practice-wide single open-source license. Contributor check is clean (only Chris Krough plus the
semantic-releasebot), so Backchain LLC holds copyright on all code and the flip is unilateral and valid.Changes
Copyright (C) 2025 Backchain LLC, links backchain.ai@ckrough)Apache-2.0, authors/maintainers Chris Krough, project URLs (Homepage/Repository/Documentation)backend/srcPython filesAttribution (dual by design)
Verification
mypy --strict: no issues, 63 filespytest: 285 passed, 9 skipped, 87.2% coverage (gate 80%)ruff check/ruff format --check: cleanFollow-ups (not in this PR)
repo-licensing.mdrule update → tracked in prof-qy8rCloses prof-i63d (relicense Retriever to Apache-2.0).