feat: add weight config panel to 新建评估 and weighted_score card to report

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

webapp/static/js/report.js

@@ -127,6 +127,18 @@ const Report = {
       `;
       wrap.appendChild(card);
     });
+
+    // 综合加权得分卡片
+    const wsValue = (report && report.weighted_score_mean !== undefined) ? report.weighted_score_mean : null;
+    const wsCard = document.createElement("div");
+    wsCard.className = "metric-card weighted-score-card";
+    const wsCls = App.scoreClass(wsValue);
+    const wsText = wsValue === null || wsValue === undefined ? "n/a" : wsValue.toFixed(2);
+    wsCard.innerHTML = `
+      <div class="metric-value ${wsCls}">${wsText}</div>
+      <div class="metric-name">综合加权得分</div>
+    `;
+    wrap.appendChild(wsCard);
   },
 
   // ② 分数分布直方图（可切换指标）。