feat: add initial

Signed-off-by: kjuulh <contact@kjuulh.io>

interface/proto/sq/v1/health.proto

@@ -0,0 +1,23 @@
+syntax = "proto3";
+package sq.v1;
+
+service StatusService {
+  rpc Status(GetStatusRequest) returns (GetStatusResponse) {}
+}
+
+message GetStatusRequest {}
+
+message GetStatusResponse {
+  string node_id = 1;
+  ClusterStatus cluster = 2;
+}
+
+message ClusterStatus {
+  repeated NodeInfo nodes = 1;
+}
+
+message NodeInfo {
+  string node_id = 1;
+  string address = 2;
+  string status = 3;
+}