Desktop 0.13.8 still treated SQLite freelist pages left by normal chat and note writes as evidence of pending migration when a file-backed note existed. Migration detection now checks only the schema version and legacy note payloads, while the startup worker reuses its confirmed pending decision during retries so actual migrations can still finish compaction.
Release note: 修复已有笔记用户正常聊天后重启仍重复显示历史迁移的问题；已完成迁移的数据继续按新格式保存，普通写入产生的空闲页不再触发迁移。
Repeated full subagent progress snapshots could grow the desktop database to
many gigabytes during ordinary long-running tasks. Local and managed SSH
writes now retain lossless progress changes while preserving conversation
snapshots, event identities, remote replay deduplication and transaction rollback.
Upgrade existing history in bounded worker-thread batches, show progress and
retry controls, and reclaim freed disk space after conversion. Schema 34 cannot
be opened by older clients; a pre-upgrade backup is required for client rollback.
Document reusable database migration guidance and the verified large-database,
portable, local Runtime and Linux Host evidence.
Prepare Desktop 0.13.1 with the approved bilingual notes and aligned feature
lists. Agent remains 0.11.24. Final candidate validation and production builds
will run on main CI, as requested, without additional local release testing.
Release note: 修复长任务和子任务造成的数据库异常膨胀；升级时自动整理旧记录并回收空间，保留聊天、执行详情和结果，并支持退出后继续处理。
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