Experience scripts: fix blocked permission check regression

[martysl]

Problem

Experience scripts were breaking in the permission request flow.

In llRequestExperiencePermissions, the permission branch checked ExperiencePermission.Allowed twice. Because of that, the Blocked case was never handled explicitly and blocked users could fall through into the permission prompt path.

What I changed

• Updated Source/OpenSim.Region.ScriptEngine.Shared/Api/LSL_Api.cs.
• Replaced the second duplicate check:
  • from: else if (experiencePermission == ExperiencePermission.Allowed)
  • to: else if (experiencePermission == ExperiencePermission.Blocked)
• This now correctly sends experience_permissions_denied with XP_ERROR_NOT_PERMITTED for blocked users.

Pull Request

PR with fix: #149

[mdickson]

Looks good. Merging.