feat(guard): add http ping endpoint to edge api hosts (#2506)

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## Changes

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Author: NathanFlurry

Cargo.lock

@@ -1,7 +1,9 @@
 use chirp_workflow::prelude::*;
 use cluster::types::{Filter, PoolType};
 use global_error::GlobalResult;
-use rivet_guard_core::proxy_service::{RouteConfig, RouteTarget, RoutingOutput, RoutingTimeout};
+use rivet_guard_core::proxy_service::{RouteConfig, RouteTarget, RoutingOutput, RoutingTimeout, StructuredResponse};
+use rivet_guard_core::status::StatusCode;
+use std::borrow::Cow;
 use uuid::Uuid;
 
 /// Route requests to the API service
@@ -26,6 +28,15 @@ pub async fn route_api_request(
 		}
 	}
 
+	// Handle ping endpoint
+	if path == "/ping" {
+		return Ok(Some(RoutingOutput::Response(StructuredResponse {
+			status: StatusCode::OK,
+			message: Cow::Borrowed("ok"),
+			docs: None,
+		})));
+	}
+
 	// Get API server from the cluster
 	let servers_res = ctx
 		.op(cluster::ops::server::list::Input {