Function collect

src/runtime_telemetry.rs:83–96

Capture a runtime snapshot for the given project. Two responsibilities: (a) sample our own process via `sysinfo`, (b) `stat` the `SQLite` files and ask the connection for its journal mode. Both are best-effort — failures degrade to zeroes / `None` rather than failing the whole snapshot, because the value of this tool is recording *what's available* during a spike.

(cg: &crate::tracedecay::TraceDecay)

/// rather than failing the whole snapshot, because the value of this
/// tool is recording *what's available* during a spike.
pub async fn collect(cg: &crate::tracedecay::TraceDecay) -> Result<RuntimeSnapshot> {
    let process = sample_process();
    let database = sample_database(cg).await?;
    let captured_at = std::time::SystemTime::now()
        .duration_since(std::time::UNIX_EPOCH)
        .map_or(0, |d| d.as_secs());
    Ok(RuntimeSnapshot {
        captured_at,
        tracedecay_version: env!("CARGO_PKG_VERSION"),
        host_os: std::env::consts::OS,
        process,
        database,
    })
}

/// Render a `RuntimeSnapshot` as the JSON wire shape used by both the
/// CLI (`--json` flag) and the MCP tool result.