reduce-memory-footprint: make sure mirror node is reading from block-node #2839
Description
#reduce-memory-footprint
- make sure mirror node is reading from block-node,
- needs CN v0.68.1 (1 week out from 2025/10/29),:
- needs BN v0.23 (2 weeks out from 2025/10/29),
- needs MN v0.143 or v0.144 (4 weeks out from 2025/10/29),
- and verify latency after switching from record streams to block-node (need by EOY 2025)