docs(tree): add tree module vertical slice design and implementation plan

research-wiki/graph/edges.json

@@ -15,6 +15,16 @@
       "id": "plan:core-agent-adapters-llm",
       "label": "core/agent/ + adapters/llm 基础设施实现计划",
       "type": "plan"
+    },
+    {
+      "id": "design:tree-module-vertical-slice",
+      "label": "建树模块竖切设计：数据结构 + 建树 + 修复 + 迁移",
+      "type": "design"
+    },
+    {
+      "id": "plan:tree-module-vertical-slice",
+      "label": "建树模块竖切实现计划",
+      "type": "plan"
     }
   ],
   "links": [
@@ -24,6 +34,13 @@
       "relation": "implements",
       "evidence": "计划实现设计文档中定义的全异步 AgentLoop + 四层治理栈",
       "added": "2026-07-07T02:25:32.349931+00:00"
+    },
+    {
+      "source": "plan:tree-module-vertical-slice",
+      "target": "design:tree-module-vertical-slice",
+      "relation": "implements",
+      "evidence": "计划逐 Task 实现设计文档中的 11 个模块",
+      "added": "2026-07-07T05:27:02.953166+00:00"
     }
   ]
 }