docs: 沉淀 Action 表单 visibleWhen 条件显隐契约

assets/schemas/skill-actions.schema.json

@@ -131,6 +131,48 @@
         "lookup": {
           "$ref": "#/$defs/lookupConfig",
           "description": "可选。内联同库表关联 Lookup（与列 options_json lookup 对象同构）。用于当前表没有对应列时；推荐同时设 display_type=lookup。见 ACTIONS.md「跨表引用：Lookup」。"
+        },
+        "visibleWhen": {
+          "description": "可选。表单字段条件显隐。宿主在数据管理/定时任务参数表单中：规则不满足则隐藏该字段、提交时省略、且不校验 required。支持 {field,equals} / {field,in:[...]}，或单键简写 {collectMode:\"按关键词采集\"} / {collectMode:[\"a\",\"b\"]}。Agent/CLI 无 UI 时同样按当前 input 求值后剥离隐藏字段。",
+          "oneOf": [
+            {
+              "type": "object",
+              "required": ["field", "equals"],
+              "additionalProperties": false,
+              "properties": {
+                "field": { "type": "string", "minLength": 1 },
+                "equals": { "type": ["string", "number", "boolean"] }
+              }
+            },
+            {
+              "type": "object",
+              "required": ["field", "in"],
+              "additionalProperties": false,
+              "properties": {
+                "field": { "type": "string", "minLength": 1 },
+                "in": {
+                  "type": "array",
+                  "minItems": 1,
+                  "items": { "type": ["string", "number", "boolean"] }
+                }
+              }
+            },
+            {
+              "type": "object",
+              "minProperties": 1,
+              "maxProperties": 1,
+              "additionalProperties": {
+                "oneOf": [
+                  { "type": ["string", "number", "boolean"] },
+                  {
+                    "type": "array",
+                    "minItems": 1,
+                    "items": { "type": ["string", "number", "boolean"] }
+                  }
+                ]
+              }
+            }
+          ]
         }
       }
     },