task_run_logs.task_id references scheduled_tasks.id, not paired_tasks.id, so
the previous deletion (keyed by paired task ids) left orphaned run-log rows
behind — with foreign_keys OFF nothing cleaned them up. Delete task_run_logs
by the chat's scheduled_tasks ids before removing the scheduled_tasks rows.
Also auto-back up the DB to /home/claude/ejclaw-db-backup-<ts>.db before the
irreversible purge (skippable with --no-backup).
Verified end-to-end in a sandboxed DB copy: a seeded room's scheduled task +
3 run logs, paired data, work items, sessions, and router cursor are all
removed, disk folders deleted, while chats/messages and unrelated rooms stay
intact.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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