fix(runtime-host): retire Agent Graph state with Sessions

[M4n5ter]

English

Summary

• Treat every Session revision root and its canonical Agent Graph operators as one lifecycle and retirement unit.
• Purge all durable Agent Graph control state through retryable Session cleanup, including recovery of legacy root-only retirements with or without operators.
• Fence client projection commits against removed roots and preserve cleanup authority across Runtime Host startup and shutdown.

Validation

• npm run format:check
• npm run lint
• npm run typecheck -w @maka/storage
• npm run typecheck -w @maka/runtime-host
• npm test -w @maka/storage
• npm test -w @maka/runtime-host

Related to #1167

中文

概要

• 将每个 Session revision root 与其 canonical Agent Graph operators 作为同一个生命周期和退休单元处理。
• 通过可重试的 Session cleanup 清除全部持久化 Agent Graph 控制状态，并恢复历史版本中有或没有 operator 的 root-only retirement。
• 在 client projection 提交时校验 root 仍然存在，并在 Runtime Host 启动与关闭期间保留完整的 cleanup authority。

验证

• npm run format:check
• npm run lint
• npm run typecheck -w @maka/storage
• npm run typecheck -w @maka/runtime-host
• npm test -w @maka/storage
• npm test -w @maka/runtime-host

关联 #1167