* feat: add tag/untag/check-prior commands for triage dedup
- Add 'tags' column to notifications table (comma-separated)
- argus notif tag <id> <tag> — add tags like triaged, hostile, follow-up
- argus notif untag <id> <tag> — remove tags
- argus notif check-prior <url> — check if URL was previously triaged
(exit 0 = prior found, exit 1 = first touch)
- Show tags in notif list output with 🏷 prefix
- Add processing + tags columns to migration function
- Bump version to 0.5.0
Motivation: postmortem/2026-03-26-duplicate-triage-2504.md
Prevents duplicate triage comments by providing a fast local
dedup check before hitting the GitHub API.
* fix: re-open dismissed notifications on new GitHub activity
Previously, notif pull skipped any notification ID already in the DB,
even if GitHub re-triggered it (new @mention, comment, etc).
This caused mentions to be silently swallowed - 5 notifications
were stuck dismissed for up to 4 days.
Now: if a dismissed notification appears in the GitHub API again
(meaning it has new unread activity), undismiss it and update the
reason field. Reports re-opened count in pull output.
* fix: avoid sqlite3.Row.get in notif audit escalation
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Co-authored-by: Nazim <nazim@openclaw.ai>