- Upgrade phpstan/phpstan 1.12 → 2.1
- Add tomasvotruba/unused-public 2.2 for automatic dead code detection
- Generate baseline (486 existing findings) to keep CI green
- Remove stale @phpstan-ignore annotation in login page (ternary.alwaysFalse)
- New code is fully checked against PHPStan 2 + unused-public rules
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
