plan: core/agent/ + adapters/llm 实现计划（14 Tasks）

Self-Review + Codex 审查通过。修复：依赖前置、治理栈顺序统一、
GovernedLLMClient 补充异常/provider/parent_call_id 测试、ARQ 残留清理。

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

research-wiki/graph/edges.json

@@ -10,7 +10,20 @@
       "id": "design:core-agent-adapters-llm",
       "label": "core/agent/ + adapters/llm 基础设施设计",
       "type": "design"
+    },
+    {
+      "id": "plan:core-agent-adapters-llm",
+      "label": "core/agent/ + adapters/llm 基础设施实现计划",
+      "type": "plan"
     }
   ],
-  "links": []
+  "links": [
+    {
+      "source": "plan:core-agent-adapters-llm",
+      "target": "design:core-agent-adapters-llm",
+      "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"
+    }
+  ]
 }