The subscription app now uses the required permissions when checking payment transaction records. This keeps subscription payment processing compatible with recent platform access changes and helps avoid interruptions for users.

This commit adapts the subscription module to the new access rules for
the model `payment.transaction` made on the community PR.

See https://github.com/odoo/odoo/pull/113515 for more information.

Task - 3102824

The appointment onboarding setup now includes image filenames so uploaded images can be displayed without showing unnecessary file size details. This creates a cleaner onboarding experience for users setting up appointment features.

Used to not show file size on the file widget.

Also, image filenames are changed in COM PR.

Task-3297572