修复完整历史与运行态内存放大并重建发布包

.trellis/tasks/10-14-history-memory-audit/task.json

@@ -0,0 +1,36 @@
+{
+  "id": "history-memory-audit",
+  "name": "history-memory-audit",
+  "title": "修复完整历史归档内存回归",
+  "description": "保留完整历史，使用不可变消息块、原子清单提交、分页读取和流式旧格式迁移，消除默认加载与保存的整份正文复制。",
+  "status": "completed",
+  "dev_type": null,
+  "scope": null,
+  "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/session-history-store.js",
+    "lib/json-persistence.js",
+    "server.js",
+    "scripts/session-history-store-unit.js",
+    "scripts/session-history-memory-unit.js",
+    "scripts/history-runtime-completion-unit.js",
+    "scripts/codexapp-retry-history-unit.js",
+    "scripts/regression.js",
+    ".trellis/spec/backend/session-history.md"
+  ],
+  "notes": "修复完成：34项完整历史持久化回归及完整隔离集成回归通过。70.5MiB合成旧归档在256MiB堆上限下流式迁移，RSS峰值145.9MiB；1128条消息经67页逐条摘要校验完整，6次尾部保存复用37个原始块，旧文件单次读取最多64KiB。语法与差异检查通过。未修改生产历史，未重启服务，运行进程尚未生效。",
+  "meta": {}
+}