Function compression

src/dashboard/lcm_api.rs:224–232

`GET /api/plugins/hermes-lcm/compression`

(
    State(state): State<DashboardState>,
    JsonQuery(params): JsonQuery<CompressionParams>,
)

/// `GET /api/plugins/hermes-lcm/compression`
pub(crate) async fn compression(
    State(state): State<DashboardState>,
    JsonQuery(params): JsonQuery<CompressionParams>,
) -> LcmResult {
    let limit = coerce_limit(params.limit, 50, 500);
    let by_node = params.by.eq_ignore_ascii_case("node");
    let payload = lcm_service::compression_payload(&state, by_node, limit).await?;
    Ok(ok(payload))
}

/// `GET /api/plugins/hermes-lcm/payloads/health`
pub(crate) async fn payloads_health(