修改发型为最终发型

static/test_interface2.html

@@ -156,7 +156,7 @@ async function submitTest() {
   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 r = await fetch(API_BASE + '/api/v1/hair/grow', { method:'POST', headers:{ 'X-Internal-Token': 'dev-shared-secret-2026' }, body:fd });
     const json = await r.json();
     const _elapsed = ((performance.now() - _reqStart) / 1000).toFixed(2);
     $('jsonContent').textContent = JSON.stringify(json, null, 2);
@@ -179,6 +179,9 @@ function renderSchemes(results) {
   let html = '';
   results.forEach((r, i) => {
     const lb = TYPE_LABELS[r.hairline_type] || r.hairline_type;
+    // 直连 worker 时后端返回 base64（网关才会改写为 *_url），URL 缺失则回退 data URI
+    const overlaySrc = r.image_url || (r.image_base64 ? 'data:image/png;base64,' + r.image_base64 : '');
+    const grownSrc = r.grown_image_url || (r.grown_image_base64 ? 'data:image/jpeg;base64,' + r.grown_image_base64 : '');
 
     // 原图
     const origSlot = '<div class="img-slot">'+
@@ -190,15 +193,15 @@ function renderSchemes(results) {
       '<div class="label"><span class="dot preview"></span>原图+发际线叠加</div>'+
       '<div class="thumb"><div class="img-stack">'+
         '<img class="layer-base" src="'+_origUrl+'" alt="原图">'+
-        '<img class="layer-anno" src="'+r.image_url+'" alt="叠加">'+
+        '<img class="layer-anno" src="'+overlaySrc+'" alt="叠加">'+
       '</div></div></div>';
 
     // 生发效果
     let grownSlot;
-    if (r.grown_image_url) {
+    if (grownSrc) {
       grownSlot = '<div class="img-slot">'+
         '<div class="label"><span class="dot grown"></span>生发效果</div>'+
-        '<div class="thumb"><img src="'+r.grown_image_url+'" alt="生发"></div></div>';
+        '<div class="thumb"><img src="'+grownSrc+'" alt="生发"></div></div>';
     } else {
       grownSlot = '<div class="img-slot">'+
         '<div class="label"><span class="dot grown"></span>生发效果</div>'+