updated db pool limits, added logs VACUUM, updated api docs

forms/record_oauth2_login.go

@@ -155,7 +155,7 @@ func (form *RecordOAuth2Login) Submit(
 			createForm := NewRecordUpsert(form.app, authRecord)
 			createForm.SetFullManageAccess(true)
 			createForm.SetDao(txDao)
-			if authUser.Username != "" {
+			if authUser.Username != "" && usernameRegex.MatchString(authUser.Username) {
 				createForm.Username = form.dao.SuggestUniqueAuthRecordUsername(form.collection.Id, authUser.Username)
 			}
 

forms/settings_upsert.go

@@ -72,6 +72,11 @@ func (form *SettingsUpsert) Submit(interceptors ...InterceptorFunc) error {
 			time.Now().AddDate(0, 0, -1*form.Settings.Logs.MaxDays),
 		)
 
+		if form.Settings.Logs.MaxDays == 0 {
+			// reclaim deleted logs disk space
+			form.app.LogsDao().Vacuum()
+		}
+
 		// merge the application settings with the form ones
 		return form.app.Settings().Merge(form.Settings)
 	}, interceptors...)