fix(rnetwork): check URL space slug not effectiveSpace for demo detection

effectiveSpace resolves to 'global' for rnetwork (global-scoped module),
so check the URL space param instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

modules/rnetwork/mod.ts

@@ -216,7 +216,7 @@ routes.get("/api/graph", async (c) => {
 		let isDemoData = false;
 
 		// Demo members: always show in "demo" space, or when no CRM token
-		const useDemoMembers = !token || dataSpace === "demo";
+		const useDemoMembers = !token || space === "demo";
 		if (useDemoMembers) {
 			isDemoData = true;