As an administrator, I want to control which OpenTelemetry attributes are selected by LokiStack as index labels and as structured metadata, so that I can improve the overall query performance on log streams.

Acceptance Criteria

1. The administrator is able to select which resource attributes are indexed as labels, which as structured metadata and which are dropped.
2. The administrator is able to configure a global list of resource attributes indexed as labels or stored as structured metadata.
3. The administrator is able to override per tenant the global list of resource attributes indexed as labels or stored as structured metadata.
4. The administrator is able to merge per tenant resource attributes with global resource attributes indexed as labels.
5. The administrator is able to configure global lists of log and scope attributes stored as structured metadata or dropped.
6. The administrator is able to configure per tenant lists of log and scope attributes stored as structured metadata or dropped.

Developer Notes:

1. The official Loki version supporting the OTLP API in GA is v3.0.0.
2. Loki allows only resource attributes to be indexed as labels. Everything else such as log or scope labels can be stored as structured metadata or dropped.