feat(platform): show vehicle service evidence chain

vehicle-data-platform/apps/web/src/pages/VehicleDetail.tsx

@@ -138,6 +138,11 @@ export function VehicleDetail({
   const consistencyTimeDeltaSeconds = consistency?.sourceTimeDeltaSeconds ?? sourceTimeDeltaSeconds;
   const consistencyTitle = consistency?.title ?? '-';
   const consistencyDetail = consistency?.detail ?? '-';
+  const evidenceSourceCount = overview?.sourceCount ?? consistencySourceCount;
+  const evidenceOnlineSourceCount = overview?.onlineSourceCount ?? consistencyOnlineSourceCount;
+  const evidenceLocatedSourceCount = consistencyLocatedSourceCount;
+  const evidenceMileageDelta = consistencyMileageDelta;
+  const evidenceTimeDeltaSeconds = consistencyTimeDeltaSeconds;
   const activeProtocol = query.protocol?.trim() ?? '';
   const scopeText = activeProtocol ? `单一来源：${activeProtocol}` : '全部来源聚合';
   const formKey = `${query.keyword}-${query.protocol ?? ''}`;
@@ -224,6 +229,27 @@ export function VehicleDetail({
         </Card>
       ) : null}
 
+      {overview || consistency ? (
+        <Card bordered title="车辆服务证据链" style={{ marginTop: 16 }}>
+          <div className="vp-evidence-grid">
+            {[
+              { label: '来源证据', value: evidenceSourceCount > 0 ? `${evidenceOnlineSourceCount}/${evidenceSourceCount} 来源在线` : '-' },
+              { label: '定位证据', value: evidenceLocatedSourceCount > 0 ? `${evidenceLocatedSourceCount} 个来源有位置` : '暂无位置' },
+              { label: '里程差异', value: formatCompactNumber(evidenceMileageDelta, ' km') },
+              { label: '时间差异', value: formatSeconds(evidenceTimeDeltaSeconds) },
+              { label: '主来源', value: overview?.primaryProtocol || summary?.primaryProtocol || '-' },
+              { label: '服务结论', value: consistencyTitle }
+            ].map((item) => (
+              <div key={item.label} className="vp-evidence-item">
+                <div className="vp-evidence-label">{item.label}</div>
+                <div className="vp-evidence-value">{item.value}</div>
+              </div>
+            ))}
+          </div>
+          <Typography.Text type="secondary">{consistencyDetail}</Typography.Text>
+        </Card>
+      ) : null}
+
       <Card bordered style={{ marginTop: 16 }}>
         <div className="vp-vehicle-summary">
           <Descriptions