feat(ui): 内置品牌图标库，badge 显示真实平台图标 - 新增 app/static/icons.js：17 个品牌 SVG 离线内嵌 （simple-icons CC0 + tabler MIT：OpenAI/Anthropic/Claude/DeepSeek/OpenRouter/ Google/Gemini/Meta/Perplexity/HuggingFace/Replicate/Baidu/MiniMax/NVIDIA/Qwen/Ollama/LMStudio） - badge 渲染：有图标显示白色品牌图形，无图标回落品牌色缩写

app/static/app.js

@@ -129,6 +129,15 @@
     return { color, abbr };
   }
 
+  /* 品牌图标 badge：有内嵌 SVG 显示真实图标，否则品牌色 + 缩写 */
+  function badgeHtml(iconKey, color, abbr) {
+    const svg = BRAND_ICONS[iconKey];
+    if (!svg) {
+      return `<span class="badge" style="background:${color}">${escapeHtml(abbr)}</span>`;
+    }
+    return `<span class="badge" style="background:${color}"><span class="badge-icon">${svg}</span></span>`;
+  }
+
   /* ---------- 视图/状态 ---------- */
 
   function switchView(name) {
@@ -209,7 +218,7 @@
     return `
       <div class="${cardCls}" style="${animStyle}">
         <div class="card-head">
-          <div class="badge" style="background:${b.color}">${escapeHtml(b.abbr)}</div>
+          ${badgeHtml(plat.icon || "", b.color, b.abbr)}
           <div class="card-title">
             <div class="card-platform">${escapeHtml(plat.name || "未知平台")} · ${escapeHtml(plat.currency || "")}</div>
             <div class="card-name" title="${escapeHtml(a.name)}">${escapeHtml(a.name)}</div>
@@ -360,7 +369,7 @@
       const rowCls = `platform-row ${p.enabled ? "" : "platform-off"}${animate ? "" : " no-anim"}`;
       return `
         <div class="${rowCls}" style="${animStyle}">
-          <div class="badge" style="background:${b.color}">${escapeHtml(b.abbr)}</div>
+          ${badgeHtml(p.icon || "", b.color, b.abbr)}
           <div class="platform-info">
             <div class="platform-name">${escapeHtml(p.name)}
               ${p.enabled ? "" : '<span class="badge-pill disabled">已停用</span>'}