Scheduled reports: Download, a report for a period as a ZIP

inbuxa:ReportExport/set creates {reportId, from?, to?}: the report built
for that period (its last full one by default, at most 90 days back, as
far as metrics are kept) as a ZIP of summary.txt and the section CSVs,
stored as an upload, mailing nobody. Reading needs sysScheduledReportGet,
as seeing the report does; a tenant administrator downloads only their
own; every download is in the audit log. A download doesn't move the
deliverability baseline the next mail compares with.

crates/jmap-proto/src/response/mod.rs

@@ -115,6 +115,7 @@ pub enum GetResponseMethod {
     SecurityAcceptance(GetResponse<crate::object::inbuxa_security_acceptance::SecurityAcceptance>),
     DeliverabilityReport(GetResponse<crate::object::inbuxa_deliverability_report::DeliverabilityReport>),
     DeliverabilitySettings(GetResponse<crate::object::inbuxa_deliverability_settings::DeliverabilitySettings>),
+    ReportExport(GetResponse<crate::object::inbuxa_report_export::ReportExport>),
     ScheduledReport(GetResponse<crate::object::inbuxa_scheduled_report::ScheduledReport>),
     ScheduledReportSettings(GetResponse<crate::object::inbuxa_scheduled_report_settings::ScheduledReportSettings>),
     Journal(GetResponse<crate::object::inbuxa_journal::Journal>),
@@ -165,6 +166,7 @@ pub enum SetResponseMethod {
     ),
     DeliverabilityReport(Box<SetResponse<crate::object::inbuxa_deliverability_report::DeliverabilityReport>>),
     DeliverabilitySettings(Box<SetResponse<crate::object::inbuxa_deliverability_settings::DeliverabilitySettings>>),
+    ReportExport(Box<SetResponse<crate::object::inbuxa_report_export::ReportExport>>),
     ScheduledReport(Box<SetResponse<crate::object::inbuxa_scheduled_report::ScheduledReport>>),
     ScheduledReportSettings(Box<SetResponse<crate::object::inbuxa_scheduled_report_settings::ScheduledReportSettings>>),
     Journal(Box<SetResponse<crate::object::inbuxa_journal::Journal>>),
@@ -896,6 +898,17 @@ impl<'x> From<SetResponse<crate::object::inbuxa_deliverability_settings::Deliver
         ResponseMethod::Set(SetResponseMethod::DeliverabilitySettings(Box::new(value)))
     }
 }
+impl<'x> From<GetResponse<crate::object::inbuxa_report_export::ReportExport>> for ResponseMethod<'x> {
+    fn from(value: GetResponse<crate::object::inbuxa_report_export::ReportExport>) -> Self {
+        ResponseMethod::Get(GetResponseMethod::ReportExport(value))
+    }
+}
+
+impl<'x> From<SetResponse<crate::object::inbuxa_report_export::ReportExport>> for ResponseMethod<'x> {
+    fn from(value: SetResponse<crate::object::inbuxa_report_export::ReportExport>) -> Self {
+        ResponseMethod::Set(SetResponseMethod::ReportExport(Box::new(value)))
+    }
+}
 impl<'x> From<GetResponse<crate::object::inbuxa_scheduled_report::ScheduledReport>> for ResponseMethod<'x> {
     fn from(value: GetResponse<crate::object::inbuxa_scheduled_report::ScheduledReport>) -> Self {
         ResponseMethod::Get(GetResponseMethod::ScheduledReport(value))