docs: standardize skill-template and add development guide

assets/schemas/publish-log-record.schema.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://openclaw.local/skill-template/publish-log-record.schema.json",
+  "title": "PublishLogRecord",
+  "description": "发布型技能 log-get 返回的单条日志对象模板",
+  "type": "object",
+  "required": ["id", "account_id", "article_id", "article_title", "status", "created_at", "updated_at"],
+  "properties": {
+    "id": { "type": "integer" },
+    "account_id": { "type": ["string", "integer"] },
+    "article_id": { "type": "integer" },
+    "article_title": { "type": "string" },
+    "status": { "type": "string" },
+    "error_msg": { "type": ["string", "null"] },
+    "created_at": { "type": ["string", "null"] },
+    "updated_at": { "type": ["string", "null"] }
+  },
+  "additionalProperties": true
+}