Rename short receivers to predictable full names across all packages:
- lb -> logBuffer (LogBuffer methods in miner.go)
- l -> logger (Logger methods in logging/logger.go)
- l -> level (Level.String() in logging/logger.go)
- h -> histogram (LatencyHistogram methods in metrics.go)
- r -> repository (FileRepository methods in repository.go)
Agents can now grep for the receiver name and get the type without
context. Single-letter 'c', 'm', 's', 'e' kept where idiomatic for
Container, Miner, Store, and Error types per Go convention.
Co-Authored-By: Charon <charon@lethean.io>
93a825c7da