Implement governed hybrid campaign delivery

webui/src/features/campaigns/ReviewSendPage.tsx

@@ -12,6 +12,7 @@ import {
   appendSent,
   buildVersion,
   cancelCampaign,
+  downloadCampaignPrintArtifact,
   getCampaignDeliveryOptions,
   getCampaignJobs,
   getCampaignJobsDelta,
@@ -151,6 +152,8 @@ export default function ReviewSendPage({
   );
   const validation = asRecord(version?.validation_summary);
   const build = asRecord(version?.build_summary);
+  const printOutput = asRecord(build.print_output);
+  const printArtifact = asRecord(printOutput.artifact);
   const summary = liveSummary ?? data.summary;
   const cards = summary?.cards;
   const attachmentSummary = asRecord(summary?.attachments);
@@ -1449,6 +1452,34 @@ export default function ReviewSendPage({
               <WorkflowFact label="i18n:govoplan-campaign.attachment_issues.69748336" value={missingAttachments + ambiguousAttachments} />
             </div>
             <p className="muted">i18n:govoplan-campaign.building_freezes_the_current_recipients_rendered.273a8170</p>
+            {getText(printOutput, "render_id") && (
+              <div className="review-flow-data-section">
+                <div className="page-heading split">
+                  <div>
+                    <h3>Printable output</h3>
+                    <p className="muted small-note">
+                      Template revision {String(printOutput.template_revision ?? "—")} · {String(printOutput.item_count ?? 0)} recipient item(s) · {String(printOutput.page_count ?? 0)} page(s) · {String(printOutput.output_size_bytes ?? 0)} B
+                    </p>
+                  </div>
+                  {getText(printArtifact, "download_path") && (
+                    <Button
+                      onClick={() => void downloadCampaignPrintArtifact(
+                        settings,
+                        getText(printArtifact, "download_path"),
+                        getText(printArtifact, "filename", "campaign-print-output.html")
+                      ).catch((reason: unknown) => setError(reason instanceof Error ? reason.message : String(reason)))}
+                    >
+                      Download output
+                    </Button>
+                  )}
+                </div>
+                <dl className="detail-list">
+                  <div><dt>Template hash</dt><dd><code>{getText(printOutput, "template_hash") || "—"}</code></dd></div>
+                  <div><dt>Input hash</dt><dd><code>{getText(printOutput, "input_hash") || "—"}</code></dd></div>
+                  <div><dt>Output hash</dt><dd><code>{getText(printOutput, "output_sha256") || "—"}</code></dd></div>
+                </dl>
+              </div>
+            )}
             <div className="button-row compact-actions review-flow-stage-actions">
               <Button variant="primary" onClick={() => void runBuild()} disabled={!version || Boolean(busy) || readOnlyVersion || !readyForDelivery || deliveryQueued || deliveryStarted}>
                 {busy === "build" ? "i18n:govoplan-campaign.building.7cc766ce" : hasBuild ? "i18n:govoplan-campaign.build_again.bd018b93" : "i18n:govoplan-campaign.build_exact_messages.bc53f55e"}