build(admin): track the SPA build output so git deploys carry it

assets/admin/build was gitignored, so servers deployed by git pull kept
running a stale admin bundle — the icon picker integration in the tabbar
and floating-button settings pages never reached them. Track the build
directory (rebuild with: cd assets/admin && npm run build) and commit the
current bundle containing the universal icon picker.

assets/admin/build/index.css

@@ -0,0 +1 @@
+.aksrt-mobile-topbar[data-v-2fabfa7d]{display:flex;align-items:center;gap:10px;height:48px;padding:0 14px;background:var(--aksrt-color-surface);border-bottom:1px solid var(--aksrt-color-border);position:sticky;top:0;z-index:50}.aksrt-mobile-topbar__menu[data-v-2fabfa7d]{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:8px;background:transparent;color:var(--aksrt-color-text);cursor:pointer;margin-left:-6px}.aksrt-mobile-topbar__menu[data-v-2fabfa7d]:hover{background:var(--aksrt-color-primary-soft)}.aksrt-mobile-topbar__title[data-v-2fabfa7d]{flex:1 1 auto;font-size:15px;font-weight:600;color:var(--aksrt-color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.aksrt-mobile-topbar__brand[data-v-2fabfa7d]{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:var(--aksrt-color-primary);color:#fff;font-size:11px;font-weight:700;letter-spacing:.06em}.aksrt-logo[data-v-7ff7ff1b]{display:flex;align-items:center;justify-content:flex-start;height:64px;gap:11px;padding:0 18px;border-bottom:1px solid var(--aksrt-color-border)}.aksrt-logo--drawer[data-v-7ff7ff1b]{height:64px}.logo-icon[data-v-7ff7ff1b]{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;flex:0 0 28px;border-radius:7px;background:var(--aksrt-color-primary);color:#fff;font-size:12px;font-weight:700;letter-spacing:.08em}.aksrt-logo__copy[data-v-7ff7ff1b]{display:flex;align-items:baseline;gap:7px;min-width:0}.logo-text[data-v-7ff7ff1b]{font-size:17px;font-weight:700;color:var(--aksrt-color-text);letter-spacing:.08em}.aksrt-logo__version[data-v-7ff7ff1b]{color:var(--aksrt-color-muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;letter-spacing:.02em}.aksrt-admin-content__inner[data-v-7ff7ff1b]{width:100%;max-width:1236px;margin:0 auto;padding:26px 28px 42px}.aksrt-admin-mobile[data-v-7ff7ff1b]{background:var(--aksrt-color-canvas);min-height:100vh}.aksrt-admin-mobile__body[data-v-7ff7ff1b]{padding:14px 12px 32px}.aksrt-page-wrapper[data-v-7ff7ff1b]{min-height:calc(100vh - 120px)}.aksrt-error-fallback[data-v-7ff7ff1b]{padding:48px 20px;text-align:center}.aksrt-error-title[data-v-7ff7ff1b]{margin:0 0 10px;font-size:16px;color:#d03050}.aksrt-error-msg[data-v-7ff7ff1b]{margin:0 0 16px;font-size:13px;color:#777}@media(max-width:1100px){.aksrt-admin-content__inner[data-v-7ff7ff1b]{padding:22px 20px 38px}}#aksrt-admin-app,#aksrt-admin-app *{box-sizing:border-box}#aksrt-admin-app{--aksrt-color-primary: #18A058;--aksrt-color-primary-hover: #36AD6A;--aksrt-color-primary-pressed: #0C7A43;--aksrt-color-primary-soft: #EAF7EF;--aksrt-color-canvas: #F5F7F6;--aksrt-color-surface: #FFFFFF;--aksrt-color-text: #1F2923;--aksrt-color-text-secondary: #465149;--aksrt-color-muted: #6F7A72;--aksrt-color-border: #E2E8E3;--aksrt-color-border-strong: #CCD7CE;--aksrt-shadow-card: 0 1px 2px rgba(31, 41, 35, .04);--aksrt-shadow-floating: 0 12px 32px rgba(31, 41, 35, .12);min-height:100%;color:var(--aksrt-color-text);background:var(--aksrt-color-canvas);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.6}#aksrt-admin-app .n-menu .n-menu-item-content i[class*=fa-],#aksrt-admin-app .n-menu-item-content i[class*=fa-]{font-size:18px;width:18px;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:inherit;opacity:.75;transition:opacity .15s}#aksrt-admin-app .n-menu-item-content--selected i[class*=fa-],#aksrt-admin-app .n-menu-item-content:hover i[class*=fa-]{opacity:1}#aksrt-admin-app .n-layout,#aksrt-admin-app .n-layout-sider{min-height:100vh}#aksrt-admin-app .aksrt-admin-layout{min-height:100vh;background:var(--aksrt-color-canvas)}#aksrt-admin-app .aksrt-admin-sider{background:var(--aksrt-color-surface);border-right:1px solid var(--aksrt-color-border)}#aksrt-admin-app .aksrt-admin-sider .n-layout-toggle-button{border:1px solid var(--aksrt-color-border);background:var(--aksrt-color-surface);color:var(--aksrt-color-muted);box-shadow:var(--aksrt-shadow-card)}#aksrt-admin-app .aksrt-admin-sider .n-layout-toggle-button:hover{border-color:var(--aksrt-color-primary);color:var(--aksrt-color-primary)}#aksrt-admin-app .aksrt-admin-menu{padding:10px 8px 18px}#aksrt-admin-app .aksrt-admin-menu .n-menu-item-content{position:relative;border-radius:8px;transition:color .16s ease,background-color .16s ease}#aksrt-admin-app .aksrt-admin-menu .n-menu-item-content--selected:after{position:absolute;top:9px;bottom:9px;left:0;width:3px;border-radius:0 3px 3px 0;background:var(--aksrt-color-primary);content:""}#aksrt-admin-app .aksrt-admin-menu .n-submenu-children{margin:2px 0 6px}#aksrt-admin-app .aksrt-admin-menu .n-menu-item-content-header{font-weight:500}#aksrt-admin-app .aksrt-menu-item--secondary .n-menu-item-content-header{color:var(--aksrt-color-muted);font-size:12px}#aksrt-admin-app .aksrt-aLine truncated