a21747fe4e
Follow-up on the salvaged #110928 (CLI `--parent-chat-id` / `--guild-id`): - `_claim_for_sub` skipped a thread-shaped row that matched no `profile_routes` entry at DEBUG on every tick. Legacy rows written before the flags existed can never match a channel-level route (no `parent_chat_id`), so the notifier now logs ONE WARNING per row naming the task, the thread and the re-subscribe command. Still fail-closed: the events stay unclaimed. - Docs: the kanban user guide explains the anchors and shows the Discord-thread subscribe command under `profile_routes`. - Test (red on origin/main): two collects → exactly one WARNING, events unseen.