WIP: Granular permissions and role changes

Permissions & Teams

So far this only implements the role changes from #2 (closed).

TODO:

• Data migration to move existing users into sensible roles.
• Team permissions

Current situation

Actions requiring login

• Viewing index
• Getting server list
• Adding a server
• Viewing heartbeat information
• Viewing notifications
• Changing your contact methods/timezone/toggle pages
• Sending a custom message

Actions requiring 'admin'

• Changing heartbeat configuration

Actions requiring 'admin' OR 'pagerpeeps'

Pagerpeeps is created with the database but this is the only place it is used.

• Performing a handover

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Improvement Plan

New roles

• Guest
• Trainee staff
• On-call staff
• Team manager

Guests can

• View index (has name of current on-call user)
• Change their contact methods/timezone BUT NOT toggle pages

Trainees can

All above actions, and:

• View server list
• View notifications
• View heartbeat information
• Toggle (failure) pages for their contact methods

On-call can

All above actions, and:

• Perform handovers
• Send custom messages
• Configure heartbeats
• Acknowledge alerts that failed to send

Team manager can

All above actions, and:

• Add servers
• Create users in their team
• Assign and change permissions of all users in their team

Closes #2 (closed)