feat(interactive): Support compiler fetching schema from /v1/graph/{graph_id} (#4585)

Previously, compiler get the schema info from the response of `GET
/v1/service/status` where the schema info is in the field `graph` of
response. However, we should support let compier get schema from the
specific graph `GET /v1/graph/{graph_id]/schema`.

Author: zhanglei1949

interactive_engine/compiler/src/main/java/com/alibaba/graphscope/common/ir/meta/reader/HttpIrMetaReader.java

@@ -144,10 +144,18 @@ private Pair<GraphId, String> convertMetaFromJsonToYaml(String metaInJson) throw
         ObjectMapper mapper = new ObjectMapper();
         JsonNode rootNode = mapper.readTree(metaInJson);
         Map<String, Object> rootMap = mapper.convertValue(rootNode, Map.class);
-        Map metaMap = (Map) rootMap.get("graph");
-        GraphId graphId = new GraphId(metaMap.get("id"));
-        Yaml yaml = new Yaml();
-        return Pair.with(graphId, yaml.dump(metaMap));
+        if (rootMap.containsKey("graph")) {
+            // Parse the response if in the 'graph' field of the response
+            Map metaMap = (Map) rootMap.get("graph");
+            GraphId graphId = new GraphId(metaMap.get("id"));
+            Yaml yaml = new Yaml();
+            return Pair.with(graphId, yaml.dump(metaMap));
+        } else {
+            // Parser the response if the response is the root
+            GraphId graphId = new GraphId(rootMap.get("id"));
+            Yaml yaml = new Yaml();
+            return Pair.with(graphId, yaml.dump(rootMap));
+        }
     }
 
     private boolean getStaticEnabled(String metaInJson) throws IOException {