Debug tooling

Investigation into many issues would be helped greatly by a debug tool that is designed specifically for this system and the kinds of issues we often look into.

Things the tool would be able to do:

• Run a "health check" on a circle:
  • Show when a circle was last synchronised
  • Show the status of that sync (success/failure and reason)
  • Ensure that all members have a registered name and webid
• List members of a circle's MUC
• Show a user's:
  • Last sync time and status (success/failure and reason)
  • Registered webid
  • Profile info
• Trigger an update of a user or circle
• Show the status of a circle or user archive:
  • Message count
  • Date span (earliest and latest message)

This tool would be easy enough for anyone to use without knowledge of Prosody/XMPP, allowing investigation to be done easily without digging into the Prosody database.