Replace legacy isDeveloper/isAdmin/hasRoles checks with
hasPermission/requirePermission across all collections. Add roleDocs
relationship to Users, enlistmentDate to Profiles, and field-level
intel_excerpt permission gate on Profiles. Auto-generated payload-types
updated to reflect the new Roles collection and roleDocs field.
Developer-gated collection for NPC characters, including the vendor
fields (enabled, priceModifier, sells[]) used by the marketplace to
attribute auto-generated listings to background merchants.
