Abstract Wikipedia team/Meetings plan

Here are some ideas as to the Abstract Wikipedia Team's meetings each week, what they should be about and who would be expected at each:
 * "✅" = attendance expected
 * "〰️" = attendance optional
 * "L" = Lead (mostly also only person in this sub-team)
 * "ED" = Engineering Director
 * "EM" = Engineering Manager
 * "*" = The whole sub-team, including ICs