Struct TailMetrics 

pub struct TailMetrics {
    pub tail: String,
    pub truncated: bool,
    pub observed_bytes: u64,
    pub included_bytes: u64,
}

Metrics returned by JobDir::read_tail_metrics.

Bundles the tail content together with the byte counts used in the run snapshot and tail JSON responses, so that both callers share the same calculation logic.

Fields

tail: String

The tail text (lossy UTF-8, last N lines / max_bytes).

truncated: bool

Whether the content was truncated by bytes or lines constraints.

observed_bytes: u64

Total file size in bytes (0 if the file does not exist).

included_bytes: u64

Number of bytes included in tail.