Add conformite page, SonarQube badge proxy, coverage fixes, and code quality
- Add /conformite page: PSD2/3DS/Stripe, SonarQube badges, CI/CD, security
- Create SonarBadgeController proxy to serve SonarQube badges without exposing token
- Store SonarQube badge token in ansible/vault.yml instead of env files
- Add Meilisearch coverage tests: search with results, search error, sync, delete
- Fix MeilisearchService delete catch block with comment
- Fix ESLint: use globalThis.confirm instead of window.confirm
- Fix accessibility: add for/id attributes to buyer creation form labels
- Add conformite link to site footer
- Add SonarBadgeControllerTest and LegalControllerTest for /conformite
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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