添加统计请求的功能

static/test_interface2.html

@@ -150,20 +150,24 @@ async function submitTest() {
   fd.append('hair_style', checked.join(','));
   fd.append('use_mask', $('useMask').value);
   fd.append('prompt', $('promptInput').value);
+  const _reqStart = performance.now();
   try {
     const r = await fetch(API_BASE + '/api/v1/hair/grow', { method:'POST', body:fd });
     const json = await r.json();
+    const _elapsed = ((performance.now() - _reqStart) / 1000).toFixed(2);
     $('jsonContent').textContent = JSON.stringify(json, null, 2);
     $('resultsArea').classList.remove('hidden');
     if (json.code === 0) {
       const results = json.data.results || [];
-      setStatus('✅ ' + results.length + ' 个方案', 'success');
+      setStatus('✅ ' + results.length + ' 个方案 (' + _elapsed + 's)', 'success');
       renderSchemes(results);
     } else {
-      setStatus('❌ code=' + json.code + ' ' + json.message, 'error');
+      setStatus('❌ (' + _elapsed + 's) code=' + json.code + ' ' + json.message, 'error');
       $('schemesContainer').innerHTML = '<div style="color:#9ca3af">无结果</div>';
     }
-  } catch(e) { setStatus('❌ ' + e.message, 'error'); $('resultsArea').classList.remove('hidden'); }
+  } catch(e) {
+    const _elapsed = ((performance.now() - _reqStart) / 1000).toFixed(2);
+    setStatus('❌ (' + _elapsed + 's) ' + e.message, 'error'); $('resultsArea').classList.remove('hidden'); }
   finally { $('submitBtn').disabled = false; $('submitBtn').textContent = '🚀 提交'; }
 }