consistent descriptive naming

Use meaningful, descriptive names that clearly convey purpose and maintain consistency across similar concepts throughout the codebase. Avoid magic strings, cryptic abbreviations, and inconsistent naming patterns.

Key principles:

1. Replace magic strings with constants: Instead of "clickhouse_max_threads", create const ClickhouseMaxThreadsKey = "clickhouse_max_threads"
2. Use consistent naming patterns: If using “legacy/current” convention in one place, apply it consistently elsewhere (e.g., serverAddrLegacyIdx and serverAddrCurrentIdx instead of mixing serverAddrIdx and netPeerIdx)
3. Choose descriptive variable names: Replace cryptic names like k, m with meaningful ones like metricName, isNormalized
4. Use semantic function names: GetTransitionedMetric (singular) instead of GetTransitionedMetrics when operating on single items
5. Follow established conventions: Use NewNotFoundf instead of NotFoundNew for natural readability, and Start/End instead of StartDate/EndDate for timestamp fields
6. Maintain naming consistency across similar concepts: Use alert_id consistently if other IDs follow underscore convention

Example of good naming consistency:

const (
    ServerNameLegacyKey  = "net.peer.name"
    ServerNameCurrentKey = "server.address"
    URLPathLegacyKey     = "http.url" 
    URLPathCurrentKey    = "url.full"
)

// Consistent variable naming
serverAddrLegacyIdx := -1
serverAddrCurrentIdx := -1

This approach improves code readability, reduces confusion during reviews, and makes the codebase more maintainable by establishing clear naming patterns that developers can follow consistently.