iter(g55): 新增 checkboxGroup 多选组组件

packages/skin/ui/ua.manifest.json

@@ -67,7 +67,8 @@
       "backTop(props)：返回顶部悬浮按钮，越过阈值才浮现，外环 conic-gradient 显示已滚比例，点击平滑回顶",
       "colorPicker(props)：颜色选择，预设色板（缺省语义令牌色）+ 原生取色器 + 手输 CSS 颜色串，value 为颜色串信号",
       "tour(props)：引导漫游，返回 { el, start, close } 句柄；聚光框按 target 选择器定位，卡片自动选方位，Esc / 跳过走 onClose",
-      "watermark(props, ...children)：内容容器 + 平铺水印覆盖层，canvas 生成单元、颜色取自令牌，覆盖层不挡交互"
+      "watermark(props, ...children)：内容容器 + 平铺水印覆盖层，canvas 生成单元、颜色取自令牌，覆盖层不挡交互",
+      "checkboxGroup(props)：多选组，value 为数组信号，min/max 用禁用边界项实现（不抛错），checkAll 支持半选且只统计未禁用项"
     ],
     "keyTypes": [
       "ButtonProps",
@@ -2332,6 +2333,61 @@
           "color 传 var(--ua-*) 时会先解析成计算值（canvas 不认 CSS 变量），所以暗色主题下颜色会自动跟随",
           "覆盖层为 pointer-events:none，下方按钮/输入框照常可点；watermark 根节点自带圆角与裁剪"
         ]
+      },
+      {
+        "id": "checkboxGroup",
+        "title": "多选组 CheckboxGroup",
+        "demo": "sec-checkgroup",
+        "props": [
+          {
+            "n": "options",
+            "t": "CheckOption[]",
+            "r": 1,
+            "d": "选项集合：value / label / 可选 disabled"
+          },
+          {
+            "n": "value",
+            "t": "Signal<string[]>",
+            "d": "选中值数组信号；不传则内部维护"
+          },
+          {
+            "n": "min",
+            "t": "number",
+            "d": "最少选几项：到下限后已选项禁用，防止取消"
+          },
+          {
+            "n": "max",
+            "t": "number",
+            "d": "最多选几项：到上限后未选项禁用"
+          },
+          {
+            "n": "checkAll",
+            "t": "boolean",
+            "d": "是否显示全选行（含半选）；缺省 false"
+          },
+          {
+            "n": "direction",
+            "t": "'horizontal' | 'vertical'",
+            "d": "排列方向；缺省 horizontal"
+          },
+          {
+            "n": "disabled",
+            "t": "boolean | Signal<boolean>",
+            "d": "整组禁用"
+          },
+          {
+            "n": "onChange",
+            "t": "(values: string[]) => void",
+            "d": "变更回调（传副本）"
+          }
+        ],
+        "example": "checkboxGroup({ value: permPick, min: 1, max: 3, checkAll: true, options: [{ value: 'read', label: '读取' }, { value: 'write', label: '写入' }] })",
+        "steps": [
+          "options 顺序即渲染顺序；勾选后把整份数组写回 value 信号并触发 onChange",
+          "max 生效时未选项自动禁用，min 生效时已选项自动禁用——用禁用表达边界，不抛错也不静默回滚",
+          "checkAll 行的选中/半选只统计未禁用项，禁用项不计入基数",
+          "direction 传 vertical 改为纵向排列；disabled 支持信号，整组响应式禁用"
+        ]
       }
     ]
   }