feat: refactor startup

[tcar121293]

Description

• Refactor the indexer startup in a way that allows the indexer to be run in a single container
• Add domainID to logger metadata

[mpetrun5]

I would prefer to still have the singleton logger and then if you need a label create:

export function createChildLogger(labels: Record<string, any/string>): winston.Logger {
  return logger.child({
    labels: {
      ...logger.defaultMeta.labels,
      label: label
    }
  });
}

This way if you go deeper in the stack and add more labels you just create a child of the one that already has the labels.
Also, you don't have to call getLogger() everywhere.

[tcar121293]

Actually i think we don't need createChildLogger. We can just do logger.child({additionalOptions})

[mpetrun5]

Makes sense.

[mpetrun5]

Would be nice to have a separate env variable that defines which domains you want.
ENV_DOMAINS for example and then you can specify which to index.
So if we want to skip some domain or separate them by containers we can easily do it just by changing the config slightly.