LOG: Encryptable read access

[lkleisa]

The idea of this feature is to log all encryptable's read accesses, to make it more transparent what and when users are accessing which entries.

This feature is based on: Access- and changelog conception.

Always run the E2E-tests if you change something in the frontend, run the backend-tests if you change something in the backend and test always manually

ToDo

• Add paper trail gem papertrail
• Add db migration according to https://github.com/paper-trail-gem/paper_trail#1b-installation
• Add has_papertrail to encryptable model and restrict it to show only https://github.com/paper-trail-gem/paper_trail#2a-choosing-lifecycle-events-to-monitor
• Add before_action :set_paper_trail_whodunnit to Api::EncryptablesController, point 4 in https://github.com/paper-trail-gem/paper_trail#1b-installation
• Only add required attributes, ignore unused https://github.com/paper-trail-gem/paper_trail#2c-choosing-attributes-to-monitor
• Make sure, reading user is persisted for every log entry
• Add spec to test logging of encryptable read / show
• Add new controller Encryptables::LogsController with index action
  • Add new route /api/encryptables/:id/logs
  • Render all log entries for given encryptable id
  • Order by date, newest on top
  • Deny API user access
  • Add controller specs
• Add Encryptables::LogPolicy
  • Show is permitted if show access to encryptable
• Find a solution for only showing some of the present log entries if there's a lot
  • pagination
  • or infinite scroll
  • or only display last 20 entries (sql limit 20)
• Add new tabs to encryptable: Credentials, Logs
• Add component for logs table (see mockup) -> See also hover effect: https://github.com/puzzle-bbt/kon-cryptopus-access-log-history/blob/main/README.md#log-page-minimal-example
• Add tests to ensure edge cases (E.g. user can't access logs if not in team)
• Refresh logs whenever an update on an encryptable occurs.
• Add show action to logs/display whenever someone has viewed an encryptable.
• Ensure that logs are deleted if encryptable is deleted.
• End to end test 😁