Fix checking of depth reference for sounding result Depth references have to match any depth reference associated with the bottlenecks reference gauge. However, these cannot necessarily be expected to be also in depth_references.

# documentation
**/README*
**/docs
**/*.md

# backend binary
cmd/gemma/gemma

# Dependency directories
**/node_modules

# local dotenv environment variables file
client/.env.local

# Tags tables
**/TAGS