feat(品牌标识): 几何 K 图标(favicon/顶栏标记/theme-color) + 并行会话成果入库

## 品牌标识（本次会话）

起因：品牌此前没有任何图形标识 —— 唯一 favicon 是内联 data-URI 里的字母「A」，
那是 v2.0.0「Aurora Admin → Kole UI」改名漏掉的一处（PC 顶栏也是「A」，
移动端站已是「K」；移动端文档站则完全没有 favicon）。

- 几何：24 网格三个互不接触的笔画（竖 + 两斜），圆头描边；
  描边 2.25 → 16px 标签页尺寸下正好 1.5px = 规范原文「描边1.5px」
- 取色分两套（刻意）：favicon 硬编码品牌蓝/白（渲染在浏览器标签栏，不继承 kole-dark）；
  顶栏标记走 currentColor（实测暗色下自动转 rgb(20,22,28)）
- 新增 theme-color 双条（light #FFFFFF / dark #1C1F26，取 --kole-color-card-bg）
- 修 site/app.js hero 标语 KOLE ADMIN → KOLE UI（改名变形残留）
- 移动端 7 个模板补 favicon（此前计数 0）

验收：门禁 9 条全 OK（site-routing/site-routes/mobile-docs/mobile-site/isolation/
theme/nav/i18n/icons）；PC 回归 1464/1464 · 移动端 807/807，各连跑 8 次一致；
两端 favicon 405 字节逐字节一致；PC 站控制台错误 1→0。

## 并行会话成果（本次一并入库）

- 图标系统：2576 图标（TDesign/Element Plus，MIT）+ 11 端注入 + 5 个构建门禁工具
  + IconPreview 预览页 + ICON-SPEC.md 冻结规格
- 移动端平台：47 组件 × 6 端 + 文档站 53 页 + 隔离门禁
- PC 组件：103 个大后台组件 / 组件11 批次
- uni-app：PC 端试点 + 移动端端实现 + 真实编译验证

## 工程

- .gitignore 补 .scratch/ 与 .zcode-preexisting-*.txt（会话中间产物，实测 9.1MB，不入库）
- CHANGELOG 补品牌标识条目
- ROADMAP 登 S8-P4（品牌标识任务包 + og:image/apple-touch-icon 未做部分）

site/sources/backtotop/css.txt

@@ -1,18 +1,18 @@
-/* Aurora Admin BackToTop 样式 — 对齐 组件7.txt BackToTop：滚动超阈值出现，右下角悬浮，带进度环 */
+/* Kole UI BackToTop 样式 — 对齐 组件7.txt BackToTop：滚动超阈值出现，右下角悬浮，带进度环 */
 
-.aa-backtop {
+.kole-backtop {
   position: fixed; right: 32px; bottom: 32px; width: 44px; height: 44px;
-  border-radius: 50%; background: var(--au-color-card-bg); border: 1px solid var(--au-color-border);
+  border-radius: 50%; background: var(--kole-color-card-bg); border: 1px solid var(--kole-color-border);
   box-shadow: 0 4px 12px rgba(0,0,0,0.12); cursor: pointer;
   display: flex; align-items: center; justify-content: center; z-index: 1000;
   opacity: 0; transform: translateY(12px); pointer-events: none;
   transition: opacity .2s, transform .2s, background .15s;
 }
-.aa-backtop.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
-.aa-backtop:hover { background: var(--au-color-brand-bg); }
-.aa-backtop svg { position: absolute; top: 0; left: 0; width: 44px; height: 44px; transform: rotate(-90deg); }
-.aa-backtop-ring-bg { stroke: var(--au-color-border); }
-.aa-backtop-ring-fg { stroke: var(--au-color-brand); transition: stroke-dashoffset .1s linear; }
-.aa-backtop-arrow { color: var(--au-color-brand); font-size: 18px; line-height: 1; z-index: 1; }
-.aa-backtop.aa-no-ring .aa-backtop-ring-fg,
-.aa-backtop.aa-no-ring .aa-backtop-ring-bg { display: none; }
+.kole-backtop.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
+.kole-backtop:hover { background: var(--kole-color-brand-bg); }
+.kole-backtop svg { position: absolute; top: 0; left: 0; width: 44px; height: 44px; transform: rotate(-90deg); }
+.kole-backtop-ring-bg { stroke: var(--kole-color-border); }
+.kole-backtop-ring-fg { stroke: var(--kole-color-brand); transition: stroke-dashoffset .1s linear; }
+.kole-backtop-arrow { color: var(--kole-color-brand); font-size: 18px; line-height: 1; z-index: 1; }
+.kole-backtop.kole-no-ring .kole-backtop-ring-fg,
+.kole-backtop.kole-no-ring .kole-backtop-ring-bg { display: none; }

site/sources/backtotop/html.txt

@@ -3,34 +3,34 @@
 <head>
   <meta charset="UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Aurora Admin · BackToTop（普通 H5）</title>
-  <link rel="stylesheet" href="../.design_library/aurora-admin/colors_and_type.css" />
+  <title>Kole UI · BackToTop（普通 H5）</title>
+  <link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css" />
   <link rel="stylesheet" href="BackToTop.css" />
   <style>
-    body { margin: 0; background: var(--au-color-page-bg); font-family: var(--font-family, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif); }
-    .aa-demo-banner { padding: 24px; background: var(--au-color-card-bg); border-bottom: 1px solid var(--au-color-border); }
-    .aa-demo-banner h2 { margin: 0 0 8px; color: var(--au-color-text-title); font-size: 18px; }
-    .aa-demo-banner p { margin: 0; color: var(--au-color-text-secondary); font-size: 13px; }
-    .aa-demo-spacer { height: 2200px; padding: 24px; color: var(--au-color-text-secondary); }
+    body { margin: 0; background: var(--kole-color-page-bg); font-family: var(--font-family, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif); }
+    .kole-demo-banner { padding: 24px; background: var(--kole-color-card-bg); border-bottom: 1px solid var(--kole-color-border); }
+    .kole-demo-banner h2 { margin: 0 0 8px; color: var(--kole-color-text-title); font-size: 18px; }
+    .kole-demo-banner p { margin: 0; color: var(--kole-color-text-secondary); font-size: 13px; }
+    .kole-demo-spacer { height: 2200px; padding: 24px; color: var(--kole-color-text-secondary); }
   </style>
 </head>
 <body>
-  <div class="aa-demo-banner">
+  <div class="kole-demo-banner">
     <h2>向下滚动页面</h2>
     <p>滚动超过 400px 后右下角出现返回顶部按钮，环显示滚动进度，点击平滑回到顶部。</p>
   </div>
-  <div class="aa-demo-spacer">这里是长内容占位区……</div>
+  <div class="kole-demo-spacer">这里是长内容占位区……</div>
 
-  <div class="aa-backtop aa-no-ring" id="backtopPlain" role="button" aria-label="返回顶部（无进度环）" style="left:24px;right:auto;display:flex">
-    <span class="aa-backtop-arrow" aria-hidden="true">↑</span>
+  <div class="kole-backtop kole-no-ring" id="backtopPlain" role="button" aria-label="返回顶部（无进度环）" style="left:24px;right:auto;display:flex">
+    <span class="kole-backtop-arrow" aria-hidden="true">↑</span>
   </div>
 
-  <div class="aa-backtop" id="backtop" role="button" aria-label="返回顶部">
+  <div class="kole-backtop" id="backtop" role="button" aria-label="返回顶部">
     <svg viewBox="0 0 44 44">
-      <circle class="aa-backtop-ring-bg" aria-label="返回顶部" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
-      <circle class="aa-backtop-ring-fg" role="button" aria-label="返回顶部" id="ring" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
+      <circle class="kole-backtop-ring-bg" aria-label="返回顶部" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
+      <circle class="kole-backtop-ring-fg" role="button" aria-label="返回顶部" id="ring" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
     </svg>
-    <span class="aa-backtop-arrow" aria-label="返回顶部">↑</span>
+    <span class="kole-backtop-arrow" aria-label="返回顶部">↑</span>
   </div>
 
   <script>

site/sources/backtotop/jsx.txt

@@ -26,16 +26,16 @@ export default function BackToTop({ threshold = 400, showRing = true }) {
 
   return (
     <div
-      className={'aa-backtop' + (visible ? ' is-visible' : '') + (showRing ? '' : ' aa-no-ring')}
+      className={'kole-backtop' + (visible ? ' is-visible' : '') + (showRing ? '' : ' kole-no-ring')}
       role="button"
       aria-label="返回顶部"
       onClick={toTop}
     >
       {showRing ? (
         <svg viewBox="0 0 44 44">
-          <circle className="aa-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" strokeWidth="2" />
+          <circle className="kole-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" strokeWidth="2" />
           <circle
-            className="aa-backtop-ring-fg"
+            className="kole-backtop-ring-fg"
             cx="22"
             cy="22"
             r="20"
@@ -45,7 +45,7 @@ export default function BackToTop({ threshold = 400, showRing = true }) {
           />
         </svg>
       ) : null}
-      <span className="aa-backtop-arrow">↑</span>
+      <span className="kole-backtop-arrow">↑</span>
     </div>
   );
 }

site/sources/backtotop/vue2.txt

@@ -1,18 +1,18 @@
 <template>
-  <div class="aa-backtop" :class="{ 'is-visible': visible, 'aa-no-ring': !showRing }"
+  <div class="kole-backtop" :class="{ 'is-visible': visible, 'kole-no-ring': !showRing }"
        role="button" aria-label="返回顶部" @click="toTop">
     <svg viewBox="0 0 44 44" v-if="showRing">
-      <circle class="aa-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
-      <circle class="aa-backtop-ring-fg" cx="22" cy="22" r="20" fill="none" stroke-width="2"
+      <circle class="kole-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
+      <circle class="kole-backtop-ring-fg" cx="22" cy="22" r="20" fill="none" stroke-width="2"
               :style="{ strokeDasharray: circumference, strokeDashoffset: offset }" />
     </svg>
-    <span class="aa-backtop-arrow">↑</span>
+    <span class="kole-backtop-arrow">↑</span>
   </div>
 </template>
 
 <script>
 export default {
-  name: 'AaBackToTop',
+  name: 'KoleBackToTop',
   props: {
     threshold: { type: Number, default: 400 },
     showRing: { type: Boolean, default: true }

site/sources/backtotop/vue3.txt

@@ -1,12 +1,12 @@
 <template>
-  <div class="aa-backtop" :class="{ 'is-visible': visible, 'aa-no-ring': !showRing }"
+  <div class="kole-backtop" :class="{ 'is-visible': visible, 'kole-no-ring': !showRing }"
        role="button" aria-label="返回顶部" @click="toTop">
     <svg viewBox="0 0 44 44" v-if="showRing">
-      <circle class="aa-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
-      <circle class="aa-backtop-ring-fg" cx="22" cy="22" r="20" fill="none" stroke-width="2"
+      <circle class="kole-backtop-ring-bg" cx="22" cy="22" r="20" fill="none" stroke-width="2" />
+      <circle class="kole-backtop-ring-fg" cx="22" cy="22" r="20" fill="none" stroke-width="2"
               :style="{ strokeDasharray: circumference, strokeDashoffset: offset }" />
     </svg>
-    <span class="aa-backtop-arrow">↑</span>
+    <span class="kole-backtop-arrow">↑</span>
   </div>
 </template>