feat: add knowledge API docs

public/api/artifacts/A029/usage.json

@@ -0,0 +1,16 @@
+{
+  "id": "A029",
+  "name": "需求跟踪矩阵",
+  "asInput": [],
+  "asOutput": [
+    {
+      "id": "P2.2",
+      "name": "收集需求",
+      "knowledgeAreaId": "KA02",
+      "knowledgeAreaName": "项目范围管理",
+      "processGroupId": "PG02",
+      "processGroupName": "规划过程组",
+      "purpose": "为定义产品范围和项目范围奠定基础。本过程仅开展一次或仅在项目的预定义点开展。"
+    }
+  ]
+}