Release v1.0.107: precipitate bind.selectionMode contract

assets/schemas/skill-actions.schema.json

@@ -311,9 +311,14 @@
           "minLength": 1,
           "pattern": "^[a-z][a-z0-9_]*$",
           "description": "可选。数据管理 Action 确认/表单弹层「已选择」摘要用的可读标签列（#id + 标签）。仅影响展示，不改变提交 payload。省略时宿主按常见列名启发（title/name 等），再不行只显示编号。"
+        },
+        "selectionMode": {
+          "type": "string",
+          "enum": ["required", "none", "optional"],
+          "description": "可选。数据管理勾选如何驱动本 Action：required=必须有勾选（无勾选禁用）；none=忽略表勾选（不出现假「已选择」）；optional=有勾选走 $selection.ids，无勾选走 pickCount/maxLeads 等空选数量字段。省略时宿主推断：有 $selection.ids 或 batch → required，否则 → none。与 placements/executionProfile 正交。"
         }
       },
-      "description": "表级绑定；toolbar 必填。可选 inputMapping / columnMapping / labelColumn。concurrency/locks 勿写入。"
+      "description": "表级绑定；toolbar 必填。可选 inputMapping / columnMapping / labelColumn / selectionMode。concurrency/locks 勿写入。"
     },
     "hostEffectId": {
       "type": "string",