chore: remove REUSE tooling and SAP copyright headers

[artemkovalyov]

Summary

• Removes REUSE.toml, LICENSES/Apache-2.0.txt, and the REUSE compliance GitHub Action workflow
• Strips all SPDX-FileCopyrightText / SPDX-License-Identifier headers from source files
• Cleans up stale references to REUSE tooling in README.md, CONTRIBUTING.md, and docs/community/index.md

Background

SPDX annotations are a standardized way to declare license and copyright per file. REUSE (by the FSFE) is a spec built on top of SPDX that requires every file in a repo to be covered — either by an inline header or a catch-all REUSE.toml. The fsfe/reuse-action CI check enforced this.

This setup made sense under SAP, which has legal requirements around per-file copyright attribution in OSS contributions. REUSE is common in the SAP OSS ecosystem for that reason.

Under the Linux Foundation umbrella (LFU), the model is different: contributors sign off commits via DCO (git commit -s), copyright stays with the original authors, and the root LICENSE file covers the whole project. Per-file SPDX headers are not required and the REUSE overhead does not add value in this governance model.

Apache 2.0 licensing remains fully in effect via the LICENSE file at the repo root — no license information is lost.

Test plan

• Verify no REUSE workflow failures in CI (action is removed)
• Confirm LICENSE file (Apache 2.0) is still present at repo root
• Check README.md, CONTRIBUTING.md, and community page render correctly without stale REUSE links

[Copilot]

🟡 Changes recommended

The updated Code of Conduct reporting guidance directs sensitive reports to public GitHub issues, which should be revised to use a private/reporting-process channel instead.

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Pull request overview

Removes REUSE/SPDX per-file compliance tooling and references from the documentation repo, aligning licensing attribution with a root-level Apache 2.0 LICENSE and dropping SAP-specific REUSE overhead.

Changes:

• Removed REUSE configuration and the REUSE compliance GitHub Action workflow.
• Stripped SPDX copyright/license headers from docs, workflows, and container config.
• Cleaned up documentation references that pointed to REUSE tooling and REUSE.toml.

File summaries

File	Description
REUSE.toml	Removes repository-level REUSE annotations/configuration.
README.md	Removes SPDX header and REUSE tool reference; updates licensing blurb.
LICENSES/Apache-2.0.txt	Removes REUSE-managed license copy (root LICENSE remains).
docs/community/index.md	Removes REUSE.toml maintainer-contact reference in CoC section.
Dockerfile	Removes SPDX headers from container build definition.
docker-compose.yml	Removes SPDX headers from compose config.
CONTRIBUTING.md	Removes SPDX header and replaces REUSE.toml maintainer contact reference.
.github/workflows/update-api.yml	Removes SPDX header from workflow file.
.github/workflows/static.yml	Removes SPDX header from workflow file.
.github/workflows/stale.yaml	Removes SPDX header from workflow file.
.github/workflows/reuse.yaml	Deletes REUSE compliance check workflow.

Review details

• Files reviewed: 11/11 changed files
• Comments generated: 2
• Review effort level: Lite

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[Copilot]

🟢 Approval recommended

The changes consistently remove REUSE/SPDX artifacts and references without leaving any remaining in-repo references or headers.

Review details

• Files reviewed: 11/11 changed files
• Comments generated: 0 new
• Review effort level: Lite