feat: setup logs retention by max file size

docs/design/source/RenewCMS Screens Back-office.dc.html

@@ -427,8 +427,10 @@ class Component extends DCLogic {
 				Mp({ tab: 'dups', offline: true, name: 'Duplicates tab: offline', trigger: 'The button is disabled with the existing banner.' })
 			] },
 			{ label: 'Settings: Retention', title: 'Settings: Retention (owner only)', route: '/settings', api: 'GET /v1/settings · PATCH /v1/settings', note: 'The last card on the page, same card styling as Version, Updates and Media cleanup. Saves on change.', states: [
-				RT('Default, 90 days', 'Saves on change.', { days: '90', saved: true }),
-				RT('Shortening the period', 'Confirms before older events are removed.', { days: '90', shorten: true }),
+				RT('Default, 90 days or 5 GB', 'Saves on change. Whichever limit is reached first removes the oldest events.', { days: '90', size: '5', saved: true }),
+				RT('Age only (no size limit)', 'The size select reads "No size limit". Same as before this option.', { days: '90' }),
+				RT('Size only (forever)', 'Age is set to Forever, so only the size limit removes events.', { days: '0', size: '5' }),
+				RT('Shortening the period', 'Confirms before older events are removed.', { days: '90', size: '5', shorten: true }),
 				RT('Forever', 'No cleanup scheduled.', { days: '0' }),
 				RT('Save error', 'The previous setting is still in place.', { days: '90', err: true })
 			] },