Add users.ban_scope INT NOT NULL DEFAULT 0 in migration 000045 so admins
can describe what a ban concretely stops (login / workspace creation /
outbound send) instead of relying on a single boolean banned_at flag
that meant "everything".
Wire flags in the BanScope enum (kept in sync with the migration) plus
a CHECK constraint guaranteeing non-negative values. Existing bans
backfill to BanScopeLogin so the historical "you can't log in"
semantics is preserved exactly — no behaviour changes silently at
deployment.
BanUserRequest gains an optional scope field, BanUser threads it through
the service to the repo write, and the UserBanDialog grows a checkbox
group with one option per flag. Reason still required; at least one
scope must be picked. Audit details now include the scope bitmask.
Runtime enforcement (refusing login when BanScopeLogin is set, etc.) is
intentionally separate from this commit — the existing codebase doesn't
yet have an active ban check anywhere, so wiring that lives across the
auth middleware, org-create handler, and emailsend service. This slice
ships the schema, the audit story, and the UI vocabulary so the
enforcement PR can land without database churn.
Matthew Meszaros
Matt