fix(license): delete the Nextcloud GmbH SPDX residue instead of relabelling it

[rubenvdlinde]

What this fixes

PR #2350 (mine) flipped SPDX-License-Identifier: AGPL-3.0-or-later → EUPL-1.2 in 12 files whose adjacent line reads:

 * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: EUPL-1.2      <- what #2350 made it say

That made development assert EUPL-1.2 over Nextcloud GmbH's copyright — a false licence claim over a third party's work, and strictly worse than the AGPL contradiction it replaced. I should have treated the copyright line as a stop sign instead of editing past it.

This PR deletes the residue block rather than relabelling it. No licence value is changed here; the false claim is removed.

Evidence that the block is app-template residue, not a real Nextcloud GmbH copyright

1. It occurs in exactly 12 source files. The only other Nextcloud GmbH strings in the repo are dependency author fields inside bom-npm-test.cdx.json — an SBOM of genuine Nextcloud npm packages, correctly left untouched.
2. 11 of the 12 already carry their own Conduction copyright in the same file (@copyright 2024 Conduction B.V., @copyright 2026 Conduction B.V.), directly contradicting the SPDX line.
3. No Nextcloud GmbH author appears anywhere in the 12 files' history. git log --follow across all of them yields only Conduction people — Barry Brands, Conduction Development Team, Remko, Robert Zondervan, Ruben van der Linde, Thijn — plus the CI bot.
4. The repo's other ~270 PHP files carry Conduction copyright only, with no SPDX pair at all — this block is exactly the nextcloud/app-template scaffold that the rest of the codebase already shed.

What changed per file

• 9 × lib/Migration/Version1Date*.php — a standalone /* SPDX… */ comment sitting below an existing full Conduction PHPDoc header; the stray comment is deleted.
• lib/Db/Webhook.php, lib/Migration/Version002003000Date20251013000000.php — the SPDX pair were the first two lines inside the main PHPDoc, which already carries @author / @copyright / @license; those two lines are removed and the rest of the docblock is untouched.
• tests/Unit/Controller/SettingsControllerTest.php — this one had no other licence header, so deleting outright would have left it unlicensed. It gains the repo's standard test-file PHPDoc (matching tests/Unit/Activity/FilterTest.php) instead.

Verification

• Nextcloud GmbH occurrences remaining under lib/ src/ tests/ appinfo/: 0
• All 12 files still carry @license EUPL-1.2 and @copyright: confirmed file by file
• php -l clean on all 12
• 12 files changed, deletions only apart from the one test-file header

A fleet sweep of the other 15 apps found no remaining Nextcloud GmbH copyright line in any app's source, so openregister was the only repo affected.

[github-actions]

Quality Report — ConductionNL/openregister @ 6a2ece3

Check	PHP	Vue	Security	License	Tests
lint	✅
phpcs	✅
phpmd	✅
psalm	✅
phpstan	✅
phpmetrics	✅
eslint		✅
stylelint		✅
build		✅
check-specs		✅
test-l10n		✅
composer			✅	✅ 173/173
npm			✅	✅ 713/713
PHPUnit					✅
Newman					✅
Playwright					✅
Hydra gates					✅

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Quality workflow — 2026-08-05 21:07 UTC

Download the full PDF report from the workflow artifacts.

[rubenvdlinde]

Merging: 27 SUCCESS / 4 SKIPPED / 0 failures.

Hydra Gates ran against a real scope — Scope: diff vs origin/development — 12 changed file(s) — and reported [gate-28] license-triangle: PASS plus RESULT: ALL 59 APPLICABLE GATES PASSED — and all 59 of them ran. Not a vacuous green: the scope is non-empty and every gate declared itself.

This removes a false licence claim that is live on development right now (EUPL-1.2 asserted over Nextcloud GmbH's copyright in 12 files), so it should land promptly.

No conflict with #2345 — that PR is CLOSED, and its 32 files have zero overlap with these 12.