docs: align host placements (row/batch), Gitea clone, developer_ids QA

assets/schemas/skill-actions.schema.json

@@ -26,7 +26,7 @@
     "placement": {
       "type": "string",
       "enum": ["toolbar", "row", "batch", "cron", "agent", "skill-detail"],
-      "description": "稳定支持 toolbar/cron/agent/skill-detail；row/batch 为预留入口，新技能示例不得使用。placements 与 executionProfile 正交，不做条件限制。"
+      "description": "稳定支持 toolbar/row/batch/cron/agent/skill-detail（对齐匠厂宿主）。placements 与 executionProfile 正交，不做条件限制。"
     },
     "scalarArg": {
       "type": ["string", "number", "boolean"]
@@ -48,7 +48,11 @@
           "type": "array",
           "minItems": 1
         },
-        "sensitive": { "type": "boolean" }
+        "sensitive": { "type": "boolean" },
+        "readOnly": {
+          "type": "boolean",
+          "description": "宿主数据管理表单只读展示该字段（仍会随提交传入 entrypoint）；用于行内/勾选预填的主键等"
+        }
       }
     },
     "inputSchema": {
@@ -110,10 +114,15 @@
             "pattern": "^[a-z][a-z0-9_]*$",
             "description": "英文 snake_case 业务表名；须真实存在于技能 SQLite / _jiangchang_tables"
           },
-          "description": "数据管理表级绑定：决定 toolbar Action 出现在哪些表。宿主兼容旧技能时，缺失 bind 可视为全表展示；新技能 toolbar Action 必须显式声明。"
+          "description": "数据管理表级绑定：决定 toolbar/row/batch Action 出现在哪些表。宿主兼容旧技能时，缺失 bind 可视为全表展示；新技能 toolbar Action 必须显式声明。"
+        },
+        "inputMapping": {
+          "type": "object",
+          "additionalProperties": { "type": "string", "minLength": 1 },
+          "description": "可选。将 $row.$pk / $row.col / $selection.ids 等映射到 inputSchema 字段名，供 row/batch 预填。"
         }
       },
-      "description": "Phase 1 仅沉淀 bind.tables；不包含 selection/inputMapping/columns/row/concurrency/locks"
+      "description": "表级绑定；toolbar 必填。可选 inputMapping 供行内/批量预填。concurrency/locks 勿写入。"
     },
     "action": {
       "type": "object",