mod_compat_roles: Fix attempt to index a nil value #1847 permissions[] is not a map with role names as keys since 817bc9873fc2 but instead a level with host names were added. This was likely an oversight. Refactored towards railroad.

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module:depends("cloud_notify_encrypted");

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module:depends("cloud_notify_priority_tag");

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module:depends("cloud_notify_filters");