- list_required_custom_fields: require actor (two clauses, no default)
- Member validation: use context.actor only, differentiate Forbidden vs transient errors
- stream_custom_fields: log + send flash on error instead of returning []
- GlobalSettingsLive: handle_info for custom_fields_load_error, put_flash
- Seeds: use Membership.update_member with actor, format
IndexComponent now passes actor to FormComponent; FormComponent uses
assigns[:actor] instead of current_actor(socket). Add test that submits
new custom field form on settings page.
- Tests and UI pass actor for CustomField create/read/destroy; seeds use actor
- Member required-custom-fields validation uses context.actor only (no fallback)
- CODE_GUIDELINES: add rule forbidding system-actor fallbacks
