Add node location access RPCs and operator visibility

src/gateway/handlers/config.ts

@@ -153,6 +153,11 @@ const PATCHABLE_KEYS: Record<string, (config: Config, value: unknown) => boolean
     config.server.queue.summarize_overflow = value;
     return true;
   },
+  'server.nodes.location.enabled': (config, value) => {
+    if (typeof value !== 'boolean') {return false;}
+    config.server.nodes.location.enabled = value;
+    return true;
+  },
 };
 
 export function createConfigHandlers(deps: ConfigHandlerDeps) {