refactor(danmuku): [PKG-DANMUKU-06] migrate runtime and preserve public types

refactor/tasks.json

@@ -3362,11 +3362,14 @@
         "ENG-04",
         "ENG-06"
       ],
-      "status": "doing",
+      "status": "done",
       "risk": "H",
       "deliverable": "自有模块、worker 消息、option/item/result 类型",
       "acceptance": "旧参数、扩展字段和事件消费通过，vendored 边界清楚",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-13-PKG-DANMUKU-06-types.md",
+        "baselines/danmuku-types-validation.json"
+      ]
     },
     {
       "id": "PKG-DANMUKU-07",
@@ -3379,7 +3382,7 @@
         "PKG-DANMUKU-06",
         "PKG-DANMUKU-10"
       ],
-      "status": "todo",
+      "status": "doing",
       "risk": "H",
       "deliverable": "负载/渲染/资源对比及 mask 可依赖的稳定边界",
       "acceptance": "在试点核心中旧插件 API 与关键帧路径通过",