refactor: simplify endpoint and capabilities

include/ApiServer.h

@@ -30,14 +30,19 @@ public:
                     const std::vector<ParamSpec>& params);
 
     static const char* methodToStr(int method);
+    
+    // Access to endpoints for endpoints endpoint
+    const std::vector<EndpointInfo>& getEndpoints() const { return endpoints; }
 
 private:
     AsyncWebServer server;
     NodeContext& ctx;
     TaskManager& taskManager;
     std::vector<std::reference_wrapper<Service>> services;
-    std::vector<std::tuple<String, int>> serviceRegistry;
+    std::vector<EndpointInfo> endpoints;  // Single source of truth for endpoints
 
     // Internal helpers
-    void registerServiceForLocalNode(const String& uri, int method);
+    void registerEndpoint(const String& uri, int method, 
+                         const std::vector<ParamSpec>& params,
+                         const String& serviceName);
 };