Migrate all remaining inline styles to CSS classes for CSP compliance
- Remove ALL inline style= attributes from 22 templates (except email/pdf)
- Add admin CSS classes in admin.scss (admin-card, admin-table, admin-btn, admin-badge, admin-tab, admin-form, admin-nav, admin-pagination)
- Add .bg-instagram, .detail-table, .section-header to app.scss
- Templates migrated: base, account/index, account/edit_subaccount, security/register, security/change_password, home/tarifs, home/index, all 7 legal pages, all 8 admin pages
- Total: ~1000 inline style= replaced with CSS classes and Tailwind utilities
- Fixes Content Security Policy violations blocking inline styles in production
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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