Fix Elasticsearch storage: In the merged index, column's property `indexOnly` not applied and cannot be updated. (#10060)

* Self-Observability: Add counters for metrics reading from DB or cached. Dashboard:`Metrics Persistent Cache Count`. (#10050)

* Self-Observability: Fix `GC Time` calculation.
* Add trace association for general service dashboards.

Fix Elasticsearch storage: In `No-Sharding Mode`, add specific analyzer to the template before index creation to avoid update index error. (#10026)

Add `@BanyanDB.TimestampColumn` to identify `which column in Record` is providing the timestamp(milliseconds) for BanyanDB (#10019)