feat: create SanitizeBlogBodiesCommand to clean existing blog bodies according to current HTML sanitization policies
test: add AppointmentTreatmentSessionLinkTest to ensure appointment booking functionality works correctly with treatment session links
- Implemented BlogBodySanitizer to clean HTML content before saving articles, ensuring security against XSS attacks.
- Added tests for BlogBodySanitizer to verify that unsafe tags and attributes are stripped from the content.
- Introduced ApiLeastPrivilegeTest to ensure that unauthorized users cannot access sensitive API routes, maintaining strict access control.