feat(retention): every growing table is pruned; the audit log has its own window; charts read the raw window from Settings (#5155)

- prune_by_age(column) registers a time-series column with the hourly cleanup;
  Traefik (metrics, access summaries, global stats) and UniFi (WAN, client,
  WLAN, DPI, events, alarms, speedtests) register theirs in setup().
- Alert events join monitor results and Ansible runs on data.retention_days,
  read from Settings each run; Ansible run log files older than it are deleted.
- audit.retention_days (365) keeps the audit log longer, set on Settings > General.
- metric_series.points reads metrics.retention.raw_days, so the chart's
  raw/rollup seam is where the rollup put it (RAW_DAYS removed).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

plugins/traefik/__init__.py

@@ -12,6 +12,11 @@ def setup(app: "Quart") -> None:
     global _app
     _app = app
     from .models import TraefikMetric, TraefikCert, TraefikGlobalStat, TraefikAccessSummary  # noqa: F401
+    from steward.core.cleanup import prune_by_age
+    # Samples older than data.retention_days are pruned by the cleanup (#5155).
+    prune_by_age(TraefikMetric.scraped_at)
+    prune_by_age(TraefikGlobalStat.scraped_at)
+    prune_by_age(TraefikAccessSummary.period_end)
 
 
 def get_scheduled_tasks() -> list:

plugins/unifi/__init__.py

@@ -16,6 +16,14 @@ def setup(app: "Quart") -> None:
         UnifiDevice, UnifiKnownClient, UnifiEvent, UnifiAlarm,
         UnifiSpeedtestResult, UnifiNetwork, UnifiPortForward, UnifiFwRule,
     )
+    from steward.core.cleanup import prune_by_age
+    # Samples and history older than data.retention_days are pruned by the
+    # cleanup (#5155). Devices, known clients and config tables are current state.
+    for column in (UnifiWanStat.scraped_at, UnifiClientSnapshot.scraped_at,
+                   UnifiWlanStat.scraped_at, UnifiDpiSnapshot.scraped_at,
+                   UnifiEvent.event_time, UnifiAlarm.alarm_time,
+                   UnifiSpeedtestResult.run_at):
+        prune_by_age(column)
 
 
 def get_scheduled_tasks() -> list: