feat(calibration): finalize Step 2 Risk & Stops with inline PDF reports and visual validation

src/web/ui/v2/static/js/pages/calibration_risk.js

@@ -212,7 +212,7 @@ async function validateCalibrationRisk() {
 async function generateRiskReport() {
   console.log("[calibration_risk] generateRiskReport() START");
 
-  const payload = buildRiskPayload(); // reutiliza la misma función que validate
+  const payload = buildRiskPayload();
 
   const res = await fetch("/api/v2/calibration/risk/report", {
     method: "POST",
@@ -220,25 +220,23 @@ async function generateRiskReport() {
     body: JSON.stringify(payload),
   });
 
-  if (!res.ok) {
-    console.error("Failed to generate report");
-    return;
+  const data = await res.json();
+
+  if (data.url) {
+    // Mostrar visor
+    const viewer = document.getElementById("pdf_viewer_section");
+    const frame = document.getElementById("pdf_frame");
+
+    frame.src = data.url;
+    viewer.classList.remove("d-none");
+
+    // Scroll suave hacia el visor
+    viewer.scrollIntoView({ behavior: "smooth" });
+  } else {
+    alert("Failed to generate report");
   }
-
-  const blob = await res.blob();
-  const url = window.URL.createObjectURL(blob);
-
-  const a = document.createElement("a");
-  a.href = url;
-  a.download = "risk_report.pdf";
-  document.body.appendChild(a);
-  a.click();
-  a.remove();
-
-  window.URL.revokeObjectURL(url);
 }
 
-
 // =================================================
 // WIZARD NAVIGATION
 // =================================================
@@ -804,6 +802,13 @@ document.addEventListener("DOMContentLoaded", () => {
   document
     .getElementById("generate_report_btn")
     ?.addEventListener("click", generateRiskReport);
+
+  document
+    .getElementById("close_pdf_btn")
+    ?.addEventListener("click", () => {
+      document.getElementById("pdf_viewer_section").classList.add("d-none");
+      document.getElementById("pdf_frame").src = "";
+  });
 });