feat: expand companion platform, device controls, and memoir workflows

Add customer and operator login, BLE provisioning, device fleet controls, call memory, memoir generation, and refreshed family and maintenance portals. Include API contracts, migrations, firmware sources, tests, assets, and deployment documentation.

web/admin-qa.html

@@ -0,0 +1,8 @@
+<!doctype html><html lang="zh-CN"><head><meta charset="UTF-8"><title>管理端设计验收对照</title><style>body{margin:0;background:#e8ece8;font:14px system-ui;color:#244f40}header{padding:12px 20px;display:flex;gap:18px;align-items:center}select{padding:8px}main{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:0 14px}section{min-width:0}h2{font-size:14px;margin:12px 0}.frame{overflow:hidden;background:white;position:relative}iframe{border:0;transform-origin:top left;position:absolute;top:0;left:0}img{width:100%;display:block}body.mobile main{grid-template-columns:400px 1fr}body.mobile iframe{position:static;transform:none!important}body.mobile #source{display:none}</style></head><body><header><strong>同尺寸设计对照 · 本地示例数据</strong><select id="page"><option value="devices">设备管理</option><option value="firmware">固件管理</option><option value="models">大模型管理</option><option value="config">验证码配置</option><option value="billing">用量与费用</option></select><button id="mobile">切换手机验收</button></header><main><section id="source"><h2>设计参考（用户要求精简导航）</h2><img id="reference"></section><section><h2 id="size">实际实现 · 1487 × 1058</h2><div class="frame"><iframe title="管理端实现"></iframe></div></section></main><script type="module">
+if (!import.meta.env.DEV) throw new Error('QA is development only');
+const refs={devices:'02-devices',firmware:'03-firmware',models:'05-models',config:'14-config-captcha',billing:'07-billing'};
+const select=document.querySelector('select'), frame=document.querySelector('iframe'), box=document.querySelector('.frame');let mobile=false;
+function size(){const width=mobile?390:1487,height=mobile?844:1058;frame.style.width=width+'px';frame.style.height=height+'px';const scale=mobile?1:box.clientWidth/1487;frame.style.transform='scale('+scale+')';box.style.height=(height*scale)+'px';document.querySelector('#size').textContent='实际实现 · '+width+' × '+height;}
+function show(){document.querySelector('#reference').src='/design/admin-qa-reference/'+refs[select.value]+'.png';frame.src='/portal-preview.html?screen=maintenance&area='+select.value;size();}
+select.onchange=show;document.querySelector('button').onclick=()=>{mobile=!mobile;document.body.classList.toggle('mobile',mobile);size();};new ResizeObserver(size).observe(box);show();
+</script></body></html>