feat: add knowledge API docs

public/api/tools/TT072/usage.json

@@ -0,0 +1,15 @@
+{
+  "id": "TT072",
+  "name": "风险分类",
+  "usedIn": [
+    {
+      "id": "P8.3",
+      "name": "实施定性风险分析",
+      "knowledgeAreaId": "KA08",
+      "knowledgeAreaName": "项目风险管理",
+      "processGroupId": "PG02",
+      "processGroupName": "规划过程组",
+      "purpose": "重点关注高优先级的风险。本过程需要在整个项目期间开展。"
+    }
+  ]
+}