修复完整历史与运行态内存放大并重建发布包

.trellis/tasks/10-14-runtime-json-memory-fix/task.json

@@ -0,0 +1,36 @@
+{
+  "id": "runtime-json-memory-fix",
+  "name": "runtime-json-memory-fix",
+  "title": "补齐完整运行态流式JSON持久化与单次任务状态提交",
+  "description": "参考另一实例的修复，将完整运行态改为64KiB流式读写，取消序列化克隆与等值比较，归档提交内部保护更新的任务状态；保留已完成的历史分块存储和分页读取。",
+  "status": "completed",
+  "dev_type": "backend",
+  "scope": "persistence",
+  "package": null,
+  "priority": "P2",
+  "creator": "shiyue",
+  "assignee": "shiyue",
+  "createdAt": "2026-10-14",
+  "completedAt": "2026-10-14",
+  "branch": null,
+  "base_branch": "main",
+  "worktree_path": null,
+  "commit": null,
+  "pr_url": null,
+  "subtasks": [],
+  "children": [],
+  "parent": null,
+  "relatedFiles": [
+    "lib/json-persistence.js",
+    "lib/session-history-store.js",
+    "server.js",
+    "scripts/json-persistence-unit.js",
+    "scripts/runtime-state-memory-unit.js",
+    "scripts/session-history-store-unit.js",
+    "scripts/regression.js",
+    ".trellis/spec/backend/session-history.md",
+    ".trellis/spec/backend/quality-guidelines.md"
+  ],
+  "notes": "完整隔离集成回归、JSON10项、持久化38项通过。80MiB旧v1运行态在256MiB堆参数下RSS峰值210.5MiB，单次读写64KiB，正文摘要完整、write/fsync/rename失败保留旧档。未修改生产历史，未重启服务。",
+  "meta": {}
+}