添加统计请求的功能

static/test_interface3.html

@@ -159,9 +159,11 @@ async function submitTest() {
   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-b', { 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');
 
@@ -186,12 +188,14 @@ async function submitTest() {
         return;
       }
 
-      setStatus('✅ 成功  |  发际线类型: ' + (d.hairline_type || '—'), 'success');
+      setStatus('✅ 成功 (' + _elapsed + 's)  |  发际线类型: ' + (d.hairline_type || '—'), 'success');
     } else {
-      setStatus('❌ code=' + json.code + ' ' + json.message, 'error');
+      setStatus('❌ (' + _elapsed + 's) code=' + json.code + ' ' + json.message, 'error');
       $('blendTop').style.display = 'none';
     }
-  } 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'; }
 }