chore(server): clear context after req done

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/AccessLogFilter.java

@@ -26,6 +26,7 @@
 import java.io.IOException;
 import java.net.URI;
 
+import org.apache.hugegraph.auth.HugeGraphAuthProxy;
 import org.apache.hugegraph.config.HugeConfig;
 import org.apache.hugegraph.config.ServerOptions;
 import org.apache.hugegraph.metrics.MetricsUtil;
@@ -114,6 +115,9 @@ public void filter(ContainerRequestContext requestContext,
                          executeTime, null, method, path, uri.getQuery());
             }
         }
+
+        // Release the context
+        HugeGraphAuthProxy.resetContext();
     }
 
     private boolean statusOk(int status) {

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeAuthenticator.java

@@ -105,7 +105,6 @@ default User authenticate(final Map<String, String> credentials)
         HugeGraphAuthProxy.logUser(user, credentials.get(KEY_PATH));
         /*
          * Set authentication context
-         * TODO: unset context after finishing a request
          */
         HugeGraphAuthProxy.setContext(new Context(user));
 

hugegraph-server/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeGraphAuthProxy.java

@@ -1818,7 +1818,7 @@ protected static Context setContext(Context context) {
         return old;
     }
 
-    protected static void resetContext() {
+    public static void resetContext() {
         CONTEXTS.remove();
     }