feat: add knowledge API docs

public/api/processes/P4.4.json

@@ -0,0 +1,9 @@
+{
+  "id": "P4.4",
+  "name": "控制成本",
+  "knowledgeAreaId": "KA04",
+  "knowledgeAreaName": "项目成本管理",
+  "processGroupId": "PG04",
+  "processGroupName": "监控过程组",
+  "purpose": "在整个项目期间保持对成本基准的维护。本过程需要在整个项目期间开展。"
+}