fix(client): 删除价签底部米色页脚,二维码/条码放大填满纸面

原型与热敏/PDF/Web 三路渲染同步去掉标签底部那条印着「40×20mm」的
米色横条(打印时深色字会印到纸上,属冗余),主体直抵纸底:

- 原型 devices.html:删 .lbl-ftr CSS+DOM,.lbl-mid flex:1 自动填充
- Canvas 预览:删米色页脚绘制块+cFoot 常量,bodyBot 145→160
- 热敏 TSPL 原生:qrW/qrH 104→118、qrX 208→194、qrY 28→33,
  条码 kBarH 28→34、kBarY 102→118
- PDF:删 footerH 常量+页脚 Container,Expanded 主体撑满
- Web:删 .ftr CSS+div,.middle flex:1 填充

门禁:analyze 0 error / test 356 通过 / DS 原型 12 道 / L1 同源 / 颜色单源 全绿

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bupi8Kdqkfx2N5acFsHTx5

design/prototype/screens/devices.html

@@ -61,8 +61,8 @@
   .tpl-desc{font-size:var(--fs-xs); color:var(--muted); margin-top:3px; line-height:1.4;}
   .tpl-acts{display:flex; gap:8px; margin-top:10px;}
 
-  /* ---- 标签预览（40×20mm 热敏价签：抬头 + 商品信息/二维码 + 底部整幅一维条码 + 页脚）----
-     打印纸面为固定专色（navy 抬头 / cream 页脚 / 墨黑正文），不随 App 主题切换，故按 ds-allow 豁免。 */
+  /* ---- 标签预览（40×20mm 热敏价签：抬头 + 商品信息/二维码 + 底部整幅一维条码，无页脚）----
+     打印纸面为固定专色（navy 抬头 / 墨黑正文），不随 App 主题切换，故按 ds-allow 豁免。 */
   .lbl-wrap{display:flex; flex-direction:column; align-items:center; gap:14px;}
   .lbl-preview{width:340px; height:170px; border:1px solid var(--border); border-radius:var(--r-md); overflow:hidden; display:flex; flex-direction:column; box-shadow:var(--sh-2); background:#fff; color:#111;} /* ds-allow 打印纸面固定色 */
   .lbl-hdr{height:26px; flex:none; display:flex; align-items:center; padding:0 10px; font-size:13px; font-weight:700; letter-spacing:.05em; background:#1f2a3a; color:#f4ecd8;} /* ds-allow 打印纸面固定尺寸 */
@@ -76,7 +76,6 @@
   .lbl-bc img{width:100%; height:100%; display:block; object-fit:fill;}
   .lbl-qr{flex:none; height:100%; aspect-ratio:1;}
   .lbl-qr img{width:100%; height:100%; display:block; object-fit:contain;}
-  .lbl-ftr{height:16px; flex:none; display:flex; align-items:center; justify-content:space-between; padding:0 10px; font-size:9px; background:#f4ecd8; color:#5a4e35;} /* ds-allow 打印纸面固定尺寸 */
   .lbl-note{max-width:340px; font-size:var(--fs-sm); color:var(--muted); line-height:1.6; text-align:center;}
   /* 设计期返回悬浮球（右下角，非侵入） */
   .ds-fab{position:fixed; right:22px; bottom:22px; width:44px; height:44px; border-radius:50%; background:var(--surface); color:var(--muted); border:1px solid var(--border); display:flex; align-items:center; justify-content:center; box-shadow:var(--sh-2); z-index:var(--z-fab); opacity:.6; transition:opacity .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s; text-decoration:none;}
@@ -172,7 +171,6 @@
           </div>
           <div class="lbl-qr"><img alt="二维码" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPAAAADwCAYAAAA+VemSAAAABHNCSVQICAgIfAhkiAAAAAFzUkdCAK7OHOkAAAk0SURBVHic7d2xbtNXHMXxk8oREqqUSJHiR6hASHFHJpzdOy/ATp4AZWZiI6/QuQ9AOnXJYCYvDB3JhAMtqJEQXf4sAan3uP0599jfj5Tt6urm+n/aP9Ivx5L0hZ+Vf85VZ2qeZVq497vCOznv4HOM/fnBvGwAHSHAQDACDAQjwEAwAgwEI8BAMAIMBCPAQDACDAQbGWuXkl4XnqUXR5L2i/aeGHs/NPf+sWitJH00Pvu5ubeDZ/A7ehgb7Mmr0LHBmXGOmbn3E/P3rLoTnkFGKTfWn0VrJemNuR5rQoCBYAQYCEaAgWAEGAhGgIFgBBgIRoCBYAQYCEaAgWDOLLTrxTD7e9vmkk5u+xCDvWGet8WupB1J143rx8Y55pKOjfWPJZ0ae/dy3xv/DFYGeCLpUeH+ia5W+EOJu43rLo09l+Zc8WnoZ7nxzyCv0EAwAgwEI8BAMAIMBCPAQDACDAQjwEAwAgwEI8BAsMpJLHzLqVw9kPTAWO9Uxe6bI4YLY21lrSxuIMDr5czDziT9WnSOyVBd2up4iypdo/AK3S+3+tVdjw1AgIFgBBgIRoCBYAQYCEaAgWAEGAhGgIFgBBgIRoCBYIxSrpdTc7owq1+dGeRtqZXdeAR4vdya06r5422pld14vEIDwQgwEIwAA8EIMBCMAAPBCDAQjAADwQgwEIwAA8EqJ7F6qRft5Rwyq1+dtS63VvbQWFt5blcvn33ZOSoDzDxsv9xa2Q+FZ6m08c8gr9Dr5VS/9lQT+9lY29O5Nx4BBoIRYCAYAQaCEWAgGAEGghFgIBgBBoIRYCAYAQaCOaOUR+b4XSpnRti1NzRCtq51VFbWnhlr3XM7eAZvcAK8L2m62nkwuBrusXWto7Ky9q2knxrXuud28AzewCs0EIwAA8EIMBCMAAPBCDAQjAADwQgwEIwAA8EIMBBsJOm32z5EMLcu1KlcPZA0M0rinOrXyr3dWtleql+Bf3Uh6UvRz/tO9r647UveJrxCr1dl5apT/Vq5N7Wya0SAgWAEGAhGgIFgBBgIRoCBYAQYCEaAgWAEGAhGgIFgO0Y74dcZ19ZJmxNjznUy1KK2cvZ2OfWs7p28lHTZuPZY0tNhPLHFHUl/N679JOmZpDeN68fGuZfmZ1N533tGS+Z8eK5aVZ7ber6r5med+s9p4d6u89A7eWesdSplq1Xed+WddPGc8AoNBCPAQDACDAQjwEAwAgwEI8BAMAIMBCPAQDACDARzvuBbkl4b3zDfuu7rWqfedmxMq7ijfc7aA0kPjPVO5apbz7pbuHcl9yzOM+iMUi7MSbmFsdYdpXSe7+bxrrnx7fLVnDG2yrHBmTkiNyvc+y9jbU/Vr07VbuUzGDnO67xCL83/q24Dt0LVWe/ufV24dyXnLDyDN/BvYCAYAQaCEWAgGAEGghFgIBgBBoIRYCAYAQaCEWAg2MiYbLk3jL31UCv7UtJp41p3csepCz2U9MH4AuyxcY75UC3byq1+dVRX7VZ9lo6xuf+ZpLeNa907ue+c5darMVPnUIvvpCfbcCeVNb7uT/PevEIDwQgwEIwAA8EIMBCMAAPBCDAQjAADwQgwEIwAA8Eqa2WdasyH5jkqa1F7qZXdN8YXZY5SuqN9lRWqvZTUudXGTmWt+5w4FcHN411upWfl+J1Tz1qpsla2p9G+XsYdU5VVBKfWyvZSi1pZK4vNUVYRzL+BgWAEGAhGgIFgBBgIRoCBYAQYCEaAgWAEGAhGgIFgO8MIXos/JP1s7D0xRi+PJT0dxsNaXBZWejozrgtJvzSu1TCO2jrN1tMs9OOhVrjFfKgUbuVU1lbu7d6JU5vsfpZnTgVx63zmuXEAV09zv87elXfSE2eu3b2TXvbuaT68+dy8QgPBCDAQjAADwQgwEIwAA8EIMBCMAAPBCDAQjAADwUZGlaZTt+qqrPSsHKV078QZL10W3rk72ufUyrpndtYvzAmoQ/MsjsqKYOe+sUaVY4MOd3S1l1pZ99zvC0cpKyuCm++bV2hsss+Fe3dREUyAgWAEGAhGgIFgBBgIRoCBYAQYCEaAgWAEGAhGgIFgoy1qVqzg1pzuGbWy9yRdFNbhHjeulTmvPBnqXFs59axj80vmf5f0vHGtW23cXPu6wrmb9x5JemRsjP/myvhjBpnD+Etz76r/cO+bz5Rz5ktz/XPz93xmnsVZ6/6eTXiFBoIRYCAYAQaCEWAgGAEGghFgIBgBBoIRYCAYAQaCjYy1S0mvC8/SiyNzasbhjCS6dbj3jL0PhlbF1r3HxnTQQ+McMutZnbUyx0Urz+3WJjtjl13UnPbkVeidXBRWqL7rpJ51Zu697OTcZXiF3hxd1JyuwDm3+zu2/mHCKrq4bwIMBCPAQDACDAQjwEAwAgwEI8BAMAIMBCPAQDACDARzZqFdL4aK0dvmVr+mOjFmuN0KVaee1Z3hfizptHHtoaQPxhd33zHmincl7Ui6blzv1Mq6rOxUzf2eF86hOj/uuVNnoR1T8w6nhWepfE4qZ7i7uBNeoYFgBBgIRoCBYAQYCEaAgWAEGAhGgIFgBBgIRoCBYJWjlPjWxBh3XJo1tM7elRWqLud3PJD0wFj/0ahCdkdAx8Y0lru388XujFLeUDlK6dxJT/fdRYXqCrWyTwrPUnnf7xmlxP+piwrVFc7xpugc1Vr/WIN/AwPJCDAQjAADwQgwEIwAA8EIMBCMAAPBCDAQjAADwZiFXi+n+nVsjlO+VHs9a2X1a2WN73yoxG3lnNu9k/tGZe0nSc+MybCzxnVS6Gxu6iy0I7X6taeq3V4qa8uywys0EIwAA8EIMBCMAAPBCDAQjAADwQgwEIwAA8EIMBCscpTSqQut1Ms5tCXVrwtzKmws6bJxrVu120tlrfsMWusTR+Qq9VIr6/70Uv3qjoBWjiQ6eqqsbcYr9Obopfo1VWRlLQEGghFgIBgBBoIRYCAYAQaCEWAgGAEGghFgIBgBBoI5s9BHw5jhppsU7r1nVJHuStqRdN24fmycYyLphbF+T9JV49qFWf3qzEK7VbuV53bmld37Pmnd3wnwfnF16Ta4Mv6Y4au7jetaQ6DhDI+M9Uvz3FUzy9PQc7v33XxmXqGBYAQYCEaAgWAEGAhGgIFgBBgIRoCBYAQYCEaAgWD/ANlOLkkLzBmKAAAAAElFTkSuQmCC" /></div>
         </div>
-        <div class="lbl-ftr"><span></span><span>40×20mm</span></div>
       </div>
       <div class="lbl-note">40×20mm 热敏价签：二维码溯源 + 底部整幅一维条码（Code128，内容=商品编号，供扫码枪扫码出库）。原型为示意布局，实际由客户端热敏/PDF/Web 三路渲染。</div>
     </div>