Add current_team_id to users so the last active team is restored on
login instead of always defaulting to the personal team. When a user
belongs to multiple teams and has no valid stored choice, redirect
them to a new team.select screen (SelectTeam Livewire component) to
pick one, rather than silently choosing the first team. Update
Fortify and OAuth login flows to use the new resolveStoredTeam()
logic.