static/app.js:
- Browser tab title updates to show alert count: '(3 CRIT) GANDALF' or '(2 WARN) GANDALF'
- Stale monitoring banner: injected into .main if last_check > 15 min old,
warns operator that the monitor daemon may be down
static/style.css:
- .stale-banner: amber top-border warning strip
app.py:
- /health now checks DB connectivity and monitor freshness (last_check age)
Returns 503 + degraded status if DB unreachable or monitor stale >20min
db.py:
- cleanup_expired_suppressions(): marks time-limited suppressions inactive when
expires_at <= NOW() (was only filtered in SELECTs, never marked inactive)
- purge_old_resolved_events(days=90): deletes old resolved events to prevent
unbounded table growth
monitor.py:
- Calls cleanup_expired_suppressions() and purge_old_resolved_events() each cycle
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Jared Vititoe
17d3b7d227