fix: better logging

- verbose logging for log channel resolving logic
- don't LOG TOKENS TO THE CONSOLE OR SEQ
- actually log verbose logs to seq
- report open db connections to prometheus

Catalogger.Backend/Services/MetricsCollectionService.cs

@@ -43,6 +43,7 @@ public class MetricsCollectionService(
 
         var messageCount = await conn.ExecuteScalarAsync<int>("select count(id) from messages");
 
+        CataloggerMetrics.DatabaseConnections.Set(DatabasePool.OpenConnections);
         CataloggerMetrics.GuildsCached.Set(guildCache.Size);
         CataloggerMetrics.ChannelsCached.Set(channelCache.Size);
         CataloggerMetrics.RolesCached.Set(roleCache.Size);